Some quarterbacks come into the league like a house on fire—throwing bombs, making Pro Bowls, and stealing headlines before they’re even fully unpacked. But for every Tom Brady who aged like wine, there’s a QB who hit their ceiling before they could even finish the champagne from their breakout season.
This list is for the guys who looked like franchise saviors… until they didn’t. Whether it was injuries, bad coaching, or just plain regression, these quarterbacks went from promising to puzzling in the blink of an eye.
18. Blake Bortles

He took the Jaguars to an AFC Championship and almost beat the Patriots, and then the magic disappeared. After that run, he faded into backup duty and meme legend status.
17. Vince Young

He had Rookie of the Year hype and one of the most exciting college résumés ever. But his NFL career hit a wall fast, and he never truly found consistency or a second act.
16. Derek Anderson

One Pro Bowl season in Cleveland made it seem like the Browns had found their guy. Spoiler alert: they had not.
15. Mitchell Trubisky

One promising season had Bears fans thinking they’d struck gold. But soon, they realized Patrick Mahomes and Deshaun Watson were doing… slightly better.
14. Daunte Culpepper

He looked unstoppable, throwing bombs to Randy Moss in the early 2000s. Then injuries hit, and he never quite recaptured that dominant form.
13. Josh Freeman

He looked like a star in the making with Tampa Bay early on. But his career went from franchise QB to out of the league in what felt like a single offseason.
12. Robert Griffin III

His rookie year was electric and gave Washington real hope. Sadly, injuries and coaching drama derailed it almost immediately.
11. Carson Wentz

He was nearly MVP in 2017 before getting hurt late in the season. He never got back to that level again, and it’s been a bumpy ride ever since.
10. Matt Cassel

He looked great filling in for Brady in 2008 and cashed in big with the Chiefs. But once he became a full-time starter, the magic mostly vanished.
9. Baker Mayfield
![Cleveland Browns quarterback Baker Mayfield (6) in action during the first half of an NFL football game against the Indianapolis Colts, Sunday, Oct. 11, 2020, in Cleveland, Ohio. [Jeff Lange/Beacon Journal] Baker Cover 2](https://gamerkoala.com/wp-content/uploads/2025/05/Baker-Mayfield-10-1024x558.jpg)
He won a playoff game in Cleveland—something that hadn’t been done in forever—and then his play nosedived. A few teams later, he’s still trying to recreate that one good run.
8. Kellen Clemens

He got early starts for the Jets and was billed as their next franchise QB. But that peak didn’t last long, and he bounced around as a backup for years.
7. Nick Foles

Yes, he won a Super Bowl and looked like a legend doing it. But outside of that magical run, his career has been mostly filled with ups, downs, and clipboard-holding.
6. Jeff Garcia

He made Pro Bowls early with San Francisco and was seen as a perfect West Coast offense fit. After that brief high, his career turned into a game of NFL musical chairs.
5. Shaun King

He helped the Buccaneers reach the NFC title game as a rookie. But the longer he played, the more it became clear he wasn’t the long-term answer.
4. Mark Sanchez

Two AFC Championship Game appearances had Jets fans dreaming big. Then came the regression, the turnovers, and, of course, the Butt Fumble.
3. Matt Leinart

A Heisman winner with sky-high expectations, he showed flashes as a rookie in Arizona. But injuries, competition, and inconsistency quickly dimmed the spotlight.
Read More: 10 NFL Careers Tragically Ended by Injury
2. David Carr

He was the No. 1 overall pick with all the tools. Unfortunately, getting sacked a billion times in Houston did his development no favors.
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1. Colin Kaepernick

He burst onto the scene with jaw-dropping playoff performances and a Super Bowl appearance. But after a couple of dominant seasons, both his play and his opportunities dried up way too fast.
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