The official line at Craigslist and from Craig is that Craig just works there (and owns roughly half the company). Jim's the boss.
Given his ownership share (slightly less than half IIRC given the split between him and Jim and shared held by eBay), that's a slightly disingenuous party line.
I'm intensely curious how much responsibility for the current debacle can be attributed to Craig and how much can be attributed to Jim Buckmaster