[thenoblesunfish]

Sounds like you should find another team, overall, but one point I'd like to make is that they might be "skilled" in ways you don't understand . Happy hour is making these people like each other and that can help a team get things done. Maybe you're noticing this team takes it too far, but consider the other extreme where everyone is "skilled" but is bad at things like asking each other for help or maintaining morale.