What do you get for Collison though? He's a hard piece to trade and get an equal value back.
Taj Gibson?
Bulls still have a solid 3 big rotation with Gasol, Mirotic, & Noah with Portis picking up spot minutes. On the plus side, they get a solid backup PG to help keep their hopes alive if Rose goes down with another injury.
Meanwhile, we get a solid PF who could even start next to Cousins and push Cauley-Stein to the bench. Not to mention, it might help us be more competitive when Cousins isn't playing considering we would still have a 3 big rotation of Gibson, Koufos, & Cauley-Stein
PG - Rondo (37 min)/Curry (11 min)
SG - McLemore (24 min)/Belinelli (24 min)/Anderson
SF - Gay (34 min)/Casspi (14 min)/Butler
PF - Gibson (22 min)/Cousins (9 min)/Cauley-Stein (12 min)/Casspi (5 min)/Acy
C - Cousins (28 min)/Koufos (20 min)
Cousins - 37 min (#1 option/defensive anchor)
Rondo - 37 min (floor general)
Gay - 34 min (#2 option)
McLemore - 24 min (3 and D)
Belinelli - 24 min (6th man/floor spreader)
Gibson - 22 min (defensive roleplayer)
Koufos - 20 min (2nd team defensive anchor/post option)
Casspi - 19 min (bench scorer/floor spreader)
Cauley-Stein - 12 min (defensive roleplayer)
Curry - 11 min (bench scorer/floor spreader)
PG depth would be a concern. Wouldn't mind trying to snatch Hinrich as well, but you'll have to make salaries match.