We are more comfortable working as solo operators. It's not just that Aspies are iconoclasts. We tend to value things like honesty, direct speech, and literal explanations that don't always play well in group sessions.
Most teams begin as pseudo-teams, a term I credit to M. Scott Peck from his book A Different Drum. I've written a more detailed explanation on my other blog if you care to drill down.
Aspergians don't do so well on pseudoteams because we fiercely resist the game-playing and social deception that make pseudo-teams "work."
Here's a summary image to explain the pseudoteam. If you have Asperger's, you might be just the person a pseudoteam needs to speak the truth and provoke the crisis that helps your group become a true team. Play on!