Don't like 4 RBs, 4 TEs, and 6 WRs. Granted, they did that part of last year, but they also didn't have a true stud WR (like Robinson) or a weapon like Burton in the slot.
One really interesting scenario is if Ryan Nall can show enough to make the roster. He has experience at tailback, fullback, and H-back, and is a pretty good receiver. He's nearly the same size as Burton (6'2, 232 vs. 6'3, 235) so I wonder if he could be groomed as a versatile backup who can kill 2 roster spots at once (4th RB & 4th TE). That's probably a long shot though to expect that much out of a UDFA. I'm not a fan of Daniel Brown, but he fits the flex-TE role better than anyone other than Burton. And I expect a lot of 12 personnel, so keeping 4 TEs makes sense, especially since you don't have a guy like Kelce who's never leaving the field.
I also think they could keep 7 WRs. Ideally, Wims could make it to the practice squad, but if they don't want to take that risk, I think both Fowler and Bellamy together with McManis could make for some amazing coverage units. If that's the case, could go with 3 RBs or just 8 linemen.
FWIW, i think that OL group is dead on. The Bears keep those 9 unless 1 is injured (other than Long), then they only keep 8.