A lot watching the 2 of them throw last night you could see the difference in accuracy, if not velocity as well. Sure, Rosen was going against the 2’s and 3’s, but Fitz was just missing targets until the 3rd or 4th possession while the young gun was connecting on comparable throws.
I’d still say don’t start him before the bye. This offense with Fitz is going to look very uninspiring and I wouldn’t be shocked to see 0-4, but it’ll give the rest of the team a little time to gel and then maybe we can see what we have in Rosen without getting him killed.