There seems to be some misplaced blowback against YPA. Just look at those numbers and they define Carson Wentz: 6.7, 6.0, 6.9 and 6.4 over the past 4 years. That is Daniel Jones territory, if not slightly worse. Jones certainly never dropped all the way to 6.0.
Wentz developed lousy mechanics with the Eagles. Frank Reich thought he could fix them. It was a logical move, given the upside. Once that didn't work I'm surprised the league held any interest in Carson Wentz, at least as starter.
As others have posted, he does manage to regulate his touchdown/interception ratio, especially in 2021. But then you check the quarterback record. Wentz is exactly where you'd expect over the past 3 seasons combined: 14-21. It's remarkable how many of these guys gravitate to 40% range.
It's the reason I don't mind Teddy Bridgewater. No matter what the body language looks like, Bridgewater is well above 7 YPA for his career and he's only had one terrible season in terms of wins and losses, the full time starter season in Carolina. You can win games with Bridgewater. I hope the Dolphins recognize that. Skylar Thompson has the blueprint of a guy who would be very fortunate to reach 40%.