you think he forgot how to play in 2 years?
assume he stayed in shape and is fully rehabed/heal, he is a 1st round talent that will fall due to not playing/injury. He is for sure worth the risk in the 2nd round for a team needing a LT
I think expectations need to be tempered. Darnold likely won't match pretty much any of the numbers being tossed around. But that won't mean he isn't the possible solution at QB. It may take a bit of time to fully fix him. As long as he shows marked improvement over the past few years with the Jets--and that's based more on the eye test that what numbers he puts up--then I'll be OK with rolling with him for Year 2 and seeing if that upward trajectory continues.
Edit: Marked improvement means he's playing well enough that you think you can win with him. Yes, I understand that a good bit of improvement from him could still mean he's playing pretty darn poorly. If that's the case, then move on and find your franchise QB elsewhere.