Read this post about Tua and thought it was right on the money:
I'm one of the older members of this sub so I've been around the block a few times in the fifty+ years that I've been following the NFL.
Just to get this out of the way: Whereas it's clear that Flores had issues with Tua (and, most everyone else who wasn't on the defensive side), it's also true that Flores unceremoniously dumped Ryan Fitzpatrick as the starter in 2020 (and, he was playing well) in favor of Tua.
It's also true that Chris Grier attempted to surround Tua with weapons. In 2021, he drafted Waddle high in the first round, signed Will Fuller for $10mil, hoped that DeVante Parker could rebound from injuries and retained legitimate speedsters, Albert Wilson and Preston Williams. Due largely to injuries (including Tua, himself), the historically bad OL and the regression of the running game (Gaskin) things didn't work out. Still, Tua was 7-5 as a starter.
The biggest difference between this year and last is the addition of Hill and Mostert, the continued maturity of Tua and markedly better blocking. (it could still be better, but as we know, Tua gets the ball out ultra, ultra quick)
Yes, the offensive coaching is better, but in the NFL, personnel>coaching.
Tua and this system/personnel are a match made in heaven. Still, Tua is no Mahomes. Heck, just compare Tua's underthrow in Chicago to Waddle vs Josh Allen's last pass of the game against the Jets, moments after injuring his arm.
As a physical talent, Tua is ho-hum. However, as a thinking man's QB-pocket awareness, quick release, accuracy on short/intermediate passes, ability to actually win games-Tua is excellent.
The best comparison between Tua and the Allens, Mahomes, Herberts, Rogers etal is this: There's pitchers who throw consistently in the high 90's and win, but there's guys like Tom Glavine and Greg Maddux who nibble at the edge of the plate, change speed/location and they also win. Tua isn't Nolan Ryan or Tom Brady but he's the right QB in the right system with the right supporting cast and that's enough to give us hope