Boise State was set to join the Mountain West Conference next year. The Mountain West conference was going to have Boise State, BYU, TCU and Utah, who are the top BCS busters in the country. With all of them in the same conference, it was poised to be one of the strongest in the land.
But I guess no one but Boise State believed the conference would be taken seriously. Utah left for the new PAC-12, then BYU shortly opted for independence (presumably to be available in case an invite came from a larger conference), and now TCU is leaving for the Big East. This leaves Boise State with a conference that may be worse than the one they fled.
It's sad when considering the demise of the Big 12. The SEC is undoubtedly they top football conference in the country, but the BIG 12 was fighting the BIG 10 for number two. Then the PAC 10, ACC, and BIG East followed behind. It is quite possible that the Mountain West could have jumped to the third best football conference the nation!
No disrespect to BYU, TCU, or Utah, but I think around the country in the past few years people most feared Boise State. Maybe they just scared the Mountain West's big three enough for them to abandon the conference outright.
Obviously, with these new changes to the conference, I highly doubt that Boise State will be held to moving to the conference. They would be joining a shell of what they were sold on. So, look for Boise State to make a move sometime soon.