Naganori's definitely not cut out to be a leader. He's more of the type who follows orders and gets things done at any cost, and is not inspirational in any way XD.

I'm fine with Larry being the leader though, it would make sense given his past experience being in charge of a unit (and Jack-Of-All-Trades status). The rest of the characters don't seem like leader-material. They're either loose cannons or rookies (or in Jack Smith's case, too easygoing). At the moment, Larry does seem like the best option. It would also give him the opportunity to see how he copes with being a leader again after losing the Desert Wolves :).