Just looking at the dugout shots during the game, I suppose you could get a sense of the clubhouse being clique-ish. The young guys that all came up together (Fielder, Weeks, Hart) tend to stick together, pitchers traditionally keep to themselves, and the veteran position players like Branyan and Cameron tend to gravitate together. I think too much is made about clubhouse chemistry, though -- you don't have to be best friends with everyone to play well. That's not to say a toxic clubhouse (like the Mets, for an example) doesn't effect a team -- if things are really, really bad and the players obviously hate playing with eachother, then there will be a difference. The clubhouse chemistry thing is something that picked up steam after the Red Sox won the 2004 World Series. That team was incredibly close-knit and it overcame some pretty steep odds, so suddenly the national media thinks that it's a prerequisite for a championship, even though there are some pretty good examples to dispute that (most of those hired-gun Yankee teams, the Cardinals with Scott Rolen and Tony La Russa constantly at eachother's throats, etc.). I don't dispute that the Astros have a fun clubhouse, though -- Lance Berkman and Carlos Lee can get along with anyone. The Brewers' clubhouse was a lot of fun when Lee was there, too, but that didn't make the teams any better.