If the District Exec says she needs to go, she needs to go. The DE has the authority to take over the Committee, and run it until he/she feels it is doing right by BSA. Saw it happen to a pack (not ours) when we lived in Georgia. The Committee did not follow the DE's recs, and the DE took over. He had our pack help the other pack. It was in the best interest of the Pack, and the pack flourished. That said, do it with kindness. And you should not be anyone's assistant. Your job is big enough, and you need to support all of the positions.