A couple of days ago, the Mountain West Conference decided it wasn't expanding for the time being.  So much for that.

The Mountain West Conference announced today that Boise State University has accepted an invitation to join the MWC as its 10th member institution, effective July 1, 2011.

"We are pleased and excited to welcome Boise State University to the Mountain West Conference," said Commissioner Craig Thompson. "Since our inception just 11 short years ago, the Mountain West has experienced tremendous success, and the addition of Boise State will further enhance that strength. The MWC continues to strategize regarding potential membership scenarios and bringing Boise State into the Conference is an important part of that evolution."

Hard to believe the Mountain West would stay in a holding pattern for only a few days only to reverse course so quickly without knowing something definitive about the future of the Big XII.  Whether that means the Big XII is about to try to stay together, or is only hours from implosion is another matter entirely.

I think it's safe to say the Mountain West knows something we don't, though.