These are all valid questions, brother.
I like Robby, but I would have much rather lost him in free agency and moved CMC to receiver to prolong his career.
Our RB rotation would still be solid and you can always find rotational RBs in free agency/undrafted guys.
As far as the oline. We passed on very good offensive linemen, & when we drafted Brady Christensen he was hyped up as a “steal” by our guys. Baffling that he can’t crack the rotation with this group of guys.
I think that speaks to how bad Rhule and his guys are at scouting offensive linemen.