What we've seen on the ice so far could point to many things, doesn't necessarily have to be divided locker room.
Speaking of divided locker room.
I was a bartender at the Hub my last couple years of college. Some of the players would come in from time to time and the other bartender was roommates with a couple of the players. One night a group of 6 players came in and ordered burgers (best burgers in town back in those days!). Two of the players left without paying (dine n dash!), which pissed them all off. Two others paid their bills and left. The last two players split the two dashers and their bills to pay off the rest of the tab, so we hooked them up with a couple free beers to thank them. They proceeded to tell us all sorts of stories about the two dashers and how everyone on the team hated them...now THAT was a divided locker room from the stories they were telling. But...that team ended up making it all the way to the title game before losing to Denver.