5 hours of administration work a day.. sorry, but.. doing what? - My team know I do a lot for them, but its more like 5 minutes a day these days. The team runs itself.
On the other hand, if the members of the team flat refuse to do anything to help, then closure is probably the best thing to do. If my team mates flat refused to help, It'd make me not arsed to try too.
Best of luck in the future.