[Omi scribbles down the names as Luffy lists them-- both of theirs already on the list.] Hmmm... Liking people isn't really the issue but... [He can't help thinking of Aya. Last candidate in the world for Mr. Congeniality, that guy, but he's an invaluable teammate all the same.]

Everyone needs to be able to work as part of a team. The idea here is everyone has an assigned job, and things only work if everyone is willing to do their own assignment. Can she cooperate like that?