Shack makes a good point. We need to bear in mind that any trade for a 4 is unlikely to see that player getting many minutes, unless they are an absolute stud in which case we probably aren't trading for them anyway as the coach obviously believes Yi is the future at this spot.
It's really worth remembering that for all CV's faults he is a guy with huge potential, and could develop into seriously good player, yet despite Yi's extremely poor play of late CV still can't get any minutes. Any 4 that this team is willing to trade for will only ever be Yi's backup imo, he has not been made to earn his minutes to this point, and i don't see that changing. As much as I like Haslem and think he'd be good for this team I can't see him getting many minutes.
