He coached Kemba as an assistant the year he blew up. That may not seem like a big deal to a messageboard community, but that's a sales pitch he can easily make in a living room ("Kemba was barely averaging 10 ppg before I started working with him, we did this, this, this, I showed him how to do this, taught him that, told him what Larry Bird once told me about point guards when I played for him, and now look at Kemba -- he's the one over there on the wall next to the shot of me and KD").
But the photos on the wall ploy probably won't work going up against Calipari for someone.