I don't know on Nix arm but he is certainly athletic and can make plays on the move. I expect his arm is good enough but nobody knows until seen in regular season. Payton claims they gave him the playbook the day before they worked him out and interviewed him. He regurgitated every play and answered all the questions correctly about the playbook. I realize that he was drafted in round 1 and purdy was last pick of draft but if purdy can make it then Nix can too. It will be interesting what Purdy does when the Niners Jaguar of a team becomes a Ford.
There is an entire season of College FB for Sanders to build his resume. I like him so far but not sure Colorado will be any good. So not really sure what kind of resume improvement he can make.
Ewers progression last year was huge. He was like an entirely different player from 2 years ago. Monster arm and hometown kid. Gonna be fun to see if continues to grow as a QB. Right now I'd equate him to Mac Jones. I believe jones got a bad rap being the QB on a Pats team that no longer had the talent and an intolerant coach. They needed to be overhauled.
If the Cowboys move on from Dak, we could see FA's like Darnold and Jones under consideration. Darnold has the keys to a really good offense so he has one last opportunity to prove he has exorcised the ghosts in his head that create his bad decisions. He certainly has the physical ability.