No...I don't. Because team chemistry is a non issue when you win. The Oakland A's of the early 70s and Yankees of the late 70's proved that over and over again.
TALENT and LUCK win you championships....not chemistry. Chemistry ONLY keeps the team together a little longer. The Boston Red Sox ALSO proved both of those statements just recently.
I was in the Chicago Bulls locker room manny times during the 2nd part of the 6 NBA Championships and the chemistry at the time was so-so AT BEST...that sure as sh*t didn't stop them. When they added the so-called "ultimate cancer" at the time, Dennis Rodman.....they won INSPITE of him and his antics....and believe me there were plenty that were NEVER reported by the media.
So yes, TO ME, "team chemistry" is overrated.