I think Jerry Buss is pretty hands-off except for outlining how much he wants to spend. I think Jim Buss is a bit more involved... but I think the reason the Lakers have the roster they do (and have had the rosters they've had) is largely because Mitch Kupchak (and before him Jerry West) have put those rosters together. Not the owner. I do think that Jerry Buss is more than willing to spend tho'.
http://with-malice.com/ - The half-crazed ramblings of a Lakers fanatic in Japan