I think that where a team plays only has a small effect even if it has one at all on how a team plays. My reasoning is that if a team is good then they should be able to play well, hopefully win, anywhere they play. If a team has a good fan base then the fans should follow their team no matter where they go. I know that this does not always happen. So here is a question; how big of a role does a team's fan activity have in determining how a team plays?