if he's in last place he has no reason to make any moves. as for reversing the moves, i don't think you should and the guy in first is probably there cause he's proactive and always checking on his team and the league happenings. the other guys simply got beat to WW. it sucks but if there's no collusion i think it should stand.
On the other hand you bring up a good point about making moves to improve ones team, yahoo rules. If that is indeed a rule than I think you can act as comish and reverse all moves made due to the dropping of betts and furrey.
[size=14][b]Letters from the procupine, they'll stick straight through you.
So read one anytime you think you've made mistakes.[/b][/size]