I know I'm late to this thread, but I really thought that CSI couldn't survive the absence of Grissom. That said, having watched a couple of the Lawrence Fishburne episodes I think what they've done is really clever. He has a great amount of gravitas but hasn't been installed as the expert and isn't a direct Grissom swap, so we get to see him learn and don't automatically go for the comparison, which is something I find really interesting. Also, Lawrence Fishburne is an awesome actor. It's certainly got my attention, and I'll keep on watching. CSI Miami is just utter dross, but compelling dross. I tend to watch it more for the comedy value than anything else.