Actually anyone logged in as Admin is very powerfull in LFS because he can use all of the commands, even the server settings ones. It would be usefull to have (at least) two levels of in-game server administration:
Admin: can use all commands
Marshall: can only use commands such as kick, ban, spectate, pitlane, p_xx, rcm, rcc
The restart, qualify and end commands might be given on purpose to some marshalls by the admin(s).
I also agree with Birder that there should be a way for admins only to see who is logged in as admin/marshall.