They need to put the kid in there and unleash him.
As Shula did with Marino.
I’m not saying Rosen is Marino or anything like it, but the best way to see what you have is to start him with the 1s while the O line is healthy, the receivers are the best we have, and see what he’s got in a no bullshit game situation.
Yes, he will struggle. But he will also learn RIGHT NOW. A few games in, he will settle down. THEN you’ll see what you have.
Otherwise, this whole business is academic, and a waste of a 2nd round pick. If Rosen fails because when he finally gets in our line is decimated with injuries, you won’t see what he can do other than run for his life.
If he fails because he didn’t get to play much, then we’ll pick a QB next year and this was a waste of a 2nd round pick.
Put the kid in.