This isn't going to be popular, but it's possible the Bulls' best option is to sit tight and hope that Joakim Noah's lateral quickness and Tyrus Thomas' shot-blocking become defensive forces in the next few years.
What is McGraw thinking here? Is he just writing for the ignorant masses who think Noah and Tyrus aren't good because they don't log a ton of minutes? If there's much that's clear about those two its that they're both very good defenders right now. We don't have to wait for anything if improving our interior defense is the goal.