IlovemySNICKERS
CSI Level One
I think that CSI could survive if William Petersen did decide to leave. They could never replace the bugman, but it is possible to have the show continue without him.....and i agree with littlebit411 ....grissom has always let his guys do their own thing, and make their own decisions, but he was there to help out if needed. The show could go on without him, if everyone decided to do that.