I have come to believe that it is impossible to run a forum -- at least one where you're actively involved -- and have partners/mods doing it along with you. This is because everyone tends to have very strong opinions as to how a forum should be run, and it inevitably results in conflict and battles for control.
I disagree. The key is appointing mature people who are discreet when conflicts arise and respect the chain of command. That's easier said than done, but I've seen it work on many forums.