I don't think the criticism here is so much that these guys (or some of them, to some limited degree) are back playing their primary college position for the first three games of the season... I think what people complain about is that it often feels like we don't get a player get really settled in a position and/or their preferred position before we start moving them around.
- For instance, Morgan was exclusively LT for Arizona. He didn't play tackle at all his rookie season, and last year by my count only featured in 4 games in the tackle spots. Upon arriving to the pros he was pretty much immediately "groomed" as a RG/LG but now we have him back at LT
- Similarly, Rhyan was exclusively LT for UCLA...and I don't think he's ever featured at tackle (at least not on offense) since getting drafted. First season split time LG/RG, second season full-time RG, third season back to LG/RG but closed out the year at C, now primarily C
- Monk was initially a tackle at Duke but pretty quickly switched to interior OL, which has carried over to the pros
- Belton was only ever a tackle in college, mostly LT (I can't tell what he played prior to NC State, just listed as "OT")... he has primarily been playing at RG in the pros - I think he has one game started at tackle, but otherwise almost entirely RG. Now he is playing RT seemingly
- ZBB was a center his first two years of college and LT the next two years... he played 3 positions his first pro season (LT/LG/RT) and since has played almost entirely RT
Anywho, you get the idea. A lot of these guys are getting shifted around - repeatedly - as soon as they arrive in the league.