You didn't comprehend my post. Building for the future does not mean UConn needs to sacrifice better results (wins) for this season. Developing Evers would be sacrificing the present, or at least up to this point it looks like it would do that because he is still deficient in those skills. He is holding the offense back.
Let me reverse the question(s) to you. For those attributes you listed, has Nick shown he can do any of those things at an average FBS QB level? That is a resounding, "no". Forget doing them above average, that is a bar too high. I am sure he has improved and got better at those attributes and he is better now than before he set foot at UConn, to answer your question, but how long will it take to develop those skills in Evers to get to an average FBS QB level and at what cost? Cost isn't just limited to NIL money, but also means sacrificing team play, not maximizing the other offensive skill players, and possibly wins.
UConn Football does not have the luxury of being patient through Evers' learning curve. They got good RBs, WRs, and offensive line players, those other players on offense need to be optimized, not held back. Keep Evers on the team for next year if that is what is best for the team, but with $1.5M more of NIL money coming into UConn Football let's get a QB(s) that has advanced much further with those skills you listed such as pocket presence, footwork, reading defenses, and getting over injuries.
Another thing to note: Evers has had 2 concussions, if he gets another one he will miss several games and would have to consider his football future and quality of life after football.