I think the problem with free agency right now is that there's still some extra money floating around with the inflated cap so guys who aren't really max players are going to get max offers (Ibaka, Millsap IMO). But if you're not willing to pay it, the next tier down doesn't entice me all the much (Monroe, Gibson, Ilyasova, et al).
I'll take a hard pass on Zach Randolph, who will turn 36 this summer. Jamychal Green is interesting but is he really better than Olynyk? And what is Memphis willing to pay to keep him around if ZBo is not long for this league?
Injuries be darned, I still think if Griffin wanted to leave, I'd max him out and not think twice about it. Otherwise, I'm not sure what you do with this crop of free agent bigs. Maybe Ilyasova? Maybe look farther down the list to names like Plumlee or Aaron Baynes. Take a flier on Donatas Motiejunas?
I just don't see many of these guys as game changers for the C's unless they're willing to overpay.