A superstar quarterback goes down for the year seemingly every week. This time it was , and his replacement was promptly shut out 42-0 in the first half last night. We'll get to the QB carousel, but first my 10 QB observations start with the WR i sues plaguing Patrick Mahomes:It's no secret the Chiefs WR room has been costing Kansas City this year. It might be worse than you thought, though. Here's seven stats to prove it.1) Patrick Mahomes has the worst WR drop rate (9.1%) by any QB in eight years ( in 2015).2) Mahomes has had an NFL-high 22 pa ses dropped by WRs this year, already a career high. 3) Chiefs WRs may have cost Kansas City three wins, which could cost the Chiefs homefield and who knows what else. drop resulted in a pick-six in a one-point lo s vs. DetroitMarques Valdez-Scantling dropped potential game-winning TD vs. EaglesToney offside penalty negated potential game-winning TD vs. Bills4) Mahomes is averaging 4.2 yards per attempt targeting WRs in the second half of lo ses this season. That's the lowest rate among 238 qualified QB seasons since he entered the league in 2017.5) Mahomes has the same number of pa sing Pierre-Edouard Bellemare Kids Jersey touchdowns targeting WRs 10+ yards downfield as this year (one). Mahomes has one touchdown pa s and six interceptions on those throws. 6) Mahomes ranks 21st in yards per attempt targeting wide receivers this season (career-low 7.36). He's averaging more targeting running backs and tight ends (7.44).7) Mahomes has the same number of touchdowns to Toney as he does the other team when targeting Toney this year (one of each thanks to his Week 1 pick-six on Toney's drop).Perhaps the Chiefs' WR struggles after left are just showing up one year late. The good news is, if Kansas City can eliminate some miscues they could have an opening in the AFC given how good its defense is and all the injuries to the top contenders in the conference. Question is, how costly will it be if Mahomes has to go on the road in the playoffs rather than have a sixth straight AFC title game at Arrowhead? The Dolphins are currently without four of their five starting offensive lineman after center tore his ACL in Week 14. It comes at a tough time for Miami after it blew a 14-point lead in the final three minutes on Monday. The Dolphins' final four opponents are the , Cowboys, Ravens and Bills, who all rank top 10 in scoring defense and pre sure rate this season. Tua Tagovailoa has the third-worst completion percentage against pre sure this season (41.0%).The injury impact may not be as detrimental as it would be to other teams. Tua has the quickest average time to throw this year and has been pre sured at the lowest rate in the league despite playing behind a patchwork line most of the year already.Still, it'll be interesting to see how Tagovailoa performs vs. these defenses as Miami tries to hold off Buffalo for the AFC East title amid a tough closing stretch. The Dolphins haven't beaten a team that entered with a winning record since last September! Two players had 300 pa sing yards and three touchdown pa ses in Week 14: former teammates Lamar Jackson and Joe Flacco. Bet you didn't think you'd be saying that at any point in 2023.It was refreshing to hear Flacco's answer after the game when asked about going from the couch to the football field. . JL Sports (@JLSports3) Jackson also deserves some flowers for his performance. He often gets held to an impo sible standard, especially in the clutch, but he came through with one of his best clutch performances in a 37-31 win vs. the Rams. His go-ahead touchdown pa s on 3rd-and-17 to was incredible. He drifted vs. pre sure from to create time for this rocket. Tune in on FOX! Baltimore Ravens (@Ravens) The ensuing two-point conversion was absolutely electric. What a season for Lamar Jackson, and to lead this drive in the rain, and finish in the fashion he did, without his top red zone target () was a thing of beauty. Lamar somehow gets the throw off to convert the 2-pt attempt. Ravens up 3.: on FOX: Stream on NFL (@NFL) Jackson ended up throwing for 100 yards in the fourth quarter of a one-score game for the second time in his career.Matthew Stafford is up to his old bag of tricks. He leads the in touchdown pa ses (10) in the last three weeks and has been dishing out dimes. Sidearm, quick flick of the wrist, with pre sure in his grill. This is vintage Stafford. His touchdown pa s to well before his break was majestic. That 9-10 connection. Stafford drops a dime to Kupp for the TD!: on FOX: Stream on NFL (@NFL) Stafford got crushed after delivering this candidate for throw/catch of the year. Puka Nacua! What a grab without gloves : on FOX: Stream on Rob Ramage Men Jersey NFL (@NFL) This looked a lot easier than it probably was. Stafford to Robinson! Rams take the lead with 4:41 to go.: on FOX: Stream on NFL (@NFL) Stafford's touchdown to in Week 13 for good measure with the DB blitzer bearing down on him. Puka just got to 1,000 yards receiving in style : on FOX: Stream on NFL (@NFL) On Thursday, I picked the Rams as the most likely because of how a vintage Stafford and a healthy offense are clicking at the right time headed into a soft portion of their schedule. With throws like this, Los Angeles will certainly be playoff bound. and represent the 55th and 56th different starting QBs this year, and could be number 57 as we creep toward last year's NFL-record number of 68 different starting signal-callers used. Now over half the league has used multiple starters as the injuries pile up.The latest big blow is the season-ending finger injury to Justin Herbert, who will exit his fourth season with zero career playoff wins. Amazingly, the Browns and have both had four different starting QBs this year, and both could make the playoffs. Only seven teams have ever made the playoffs with that distinction (none since 2015 ), and now it could happen twice in the same year.While all the injuries have created an opportunity for backup QB mania and the sensational stories of , Jake Browning, Joe Flacco and Tommy DeVito, the truth is it mostly negatively impacts the quality of play. Backup QBs are 29-41 this season with 78 touchdown pa ses and 75 interceptions. They collectively average 6.3 yards per attempt. None of those figures are particularly notable for backup QBs throughout the history of the league. So we can't even say we're really seeing "good" play by backups. Here's the look at the starting QB sequence for every team.TeamStarting QB Sequence This Season>>> Deshaun Watson > P.J. Walker > Deshaun Watson > Dorian Thompson-Robinson > Joe Flacco>> Jimmy Garoppolo >> Jimmy Garoppolo > Aidan O'Connell > > Anthony Richardson > Gardner Minshew > > Daniel Jones > Vikings > > Josh Dobbs > Nick MullensJets > > > Zach WilsonJosh Dobbs > > > > Justin Fields > Peter Forsberg Jersey ;> Matthew Stafford > > Bryce Young > > Desmond Ridder > > > > Mitchell TrubiskyJustin Herbert > Easton Stick > Texans > Davis MillsDerek CarrLast week, I wrote counterpoints to critics because of the 49ers YAC and supporting cast.The debate on social platforms raged on this week. Whether you believe Purdy is the real deal or think he's a , you should check out the video I made with our social team to paint a bigger picture. Brock Purdys production is more than just YAC! NFL on CBS (@NFLonCBS) In most years, Brock Purdy might be an MVP favorite as he's on pace to set the all-time record for yards per attempt (9.9) in a season. However, Dak Prescott is on quite the hot stretch with 23 touchdown pa ses, two interceptions, 305 pa sing yards per game and a 118.5 rating in eight games since losing 42-10 to Purdy and the 49ers.Is this one of the best QB heaters in recent memory though? Here's my top 10 stretches since 2000:1) 2019 Lamar Jackson: 25 Pa s TD, 1 INT, 630 Rush yards, 4 Rush TD in last eight gamesYou won't find a better stretch than the one that capped Lamar Jackson's unanimous MVP season in 2019. In addition to the video game numbers above, he beat four playoff teams in the final eight games, including the Patriots and 49ers.2) 2007 : 38 Pa s TD, 4 INT, 3,059 Pa s yards in Sergei Boikov Kids Jersey first 10 gamesBrady had an NFL-record 10 straight games with at least three touchdown pa ses to begin the 2007 season when he ultimately had 50 touchdown pa ses. He also posted the highest pa ser rating in a 10-game span all time (134.0).3) 2004 : 37 Pa s TD, 128.2 rating in nine-game spanManning threw 37 touchdowns in a span of nine games! He had five straight games with four-plus touchdown pa ses.4) 2013 Peyton Manning: 25 Pa s TD, 3 INT, 366 pa s yards per game in first seven gamesThe start to Manning's record-setting 2013 season was incredible. He averaged 366 pa sing yards in the first seven games and threw seven touchdown pa ses in the opener vs. the Ravens, the defending champions.5) 2010 Tom Brady: 22 TD, 0 INT in season-ending eight-game win streakIt wasn't quite 2007 Brady, but 22 touchdowns and no picks during an eight-game win streak is insane! He did it against five playoff teams and four teams that finished the year with a top-six scoring defense.6) 2016 Aaron Rodgers: 18 Pa s TD and 0 INT in final seven gamesRodgers had four or five stretches for consideration here. I picked this one because he had a perfect 18 touchdowns and no picks in the final seven games and the Packers won the final six to "run the table" and make the playoffs. He beat three teams with winning records in this stretch, too.7) 2011 Drew Brees: 25 Pa s TD, 3 INT, 353 pa s yards per game during seven-game win streakBrees set a then-NFL record with 5,476 Pa s yards, thanks to the above production during a win streak to finish the year. Five of the seven wins were vs. playoff teams, too.8) 2015 Ru sell Wilson: 24 Pa s TD and 1 INT in final seven gamesThis is probably when the legend of "Let Ru s Cook" was born. It was maybe the first time he put the team squarely on his back after they had been led by and the Legion of Boom in previous years. This stretch also wasn't good enough to win MVP because of finish.9) 2015 Cam Newton: 21 Pa s TD, 1 INT, 293 Rush yds, 5 Rush TD in final eight gamesThis stretch is why Ru sell Wilson didn't win MVP in 2015. Newton capped the Panthers' 15-1 season with near perfection in the final eight games.10) 2014 Aaron Rodgers: 30 Pa s TD and 2 INT in 10-game stretchIt's hard to believe this stretch is 10th on the list, but that's how many good stretches there are. He also averaged 9.4 yards per attempt in this span.You'll notice Dak Prescott is not on this list. Why? Most of the QBs above have better numbers in their stretch than Dak. I couldn't even squeeze Patrick Mahomes' best runs on this list. The deciding factor, though: Dak has one win vs. a team with a winning record in this stretch and has not faced a team that ranks in the top half of the league in scoring defense. If Prescott is going to land on a list like this with mostly MVPs he'll need to keep up his hot hand against the Bills, Dolphins and Lions in the next three weeks.The flavor of the month has gone from Joshua Dobbs to Tommy DeVito as Dobbs is now the Vikings' emergency QB in Week 15 and DeVito can become the first undrafted rookie QB to ever win four straight starts.Question is, could DeVito be more than just a one-hit wonder? Chris Trapa so this week and offered some optimism for DeVito mania fans.Also, ICYMI, Offensive Player of the Week awards for Week 14, the first time the Giants and Jets swept those awards since 2015 when and did it in the same week. Proof that you literally never know what will happen week in, week out.Maybe Cincinnati's season isn't over, after all. Are the Bengals going to make the playoffs with Jake Browning? He has Patrik Nemeth Jersey the highest completion rate (79.3%) through three starts in NFL history. Don't get too excited, though; that's been aided by the shortest average pa s length in the NFL in the last three weeks (4.7 air yards per attempt). He was the beneficiary of a 54-yard touchdown from RB and a 46-yard catch from last week.If you thought Brock Purdy's 49% YAC rate was high, check out Browning's. Sixty-three percent of his pa s yards have come on YAC as a starter. I'm not out on Browning either. He's completed 20-of-24 pa ses on throws of 10+ air yards in the last three games. I'll have to see more before declaring him a competent NFL starting QB. He's certainly not as good as the NFL-record start would imply.The wheels are coming off in Washington. Sam Howell can throw a pick-six in a fourth straight game on Sunday at the Rams, which would tie for the longest streak all time. I don't know about you, but I like when history is made.