SALT LAKE CITY — After expanding just once in its first 10 years, the Mountain West Conference has added three schools in the past two months.

Fresno State and Nevada received and accepted invitations to join the league in a wild, wild Wednesday that left the Mountain West in a very comfortable position and the depleted Western Athletic Conference in serious need of members.

The Bulldogs and Wolf Pack are following Boise State out of the WAC and into the Mountain West, which lost Utah to the Pac-10 earlier in the summer — and it isn't over yet.

BYU is mulling going independent in football and reportedly joining the WAC in all other sports. The Cougars have not confirmed anything and may need another look before making anything official. At this rate, there might not be much of a WAC left to join.

If BYU stays, the MWC could have 11 members within the next two years with room to even out the lineup with one more school. If BYU goes, the league still has 10 members.

"I don't know BYU's intentions," Mountain West commissioner Craig Thompson said Wednesday night in a conference call. "We're simply looking at getting better and we got better tonight with Fresno State and Nevada joining our league."

The WAC, meanwhile, once had 16 teams until eight of them departed and formed the Mountain West. The only addition since has been TCU in 2005. Without new membership, the WAC would have just six schools once Fresno State and Nevada make the move.

"(Expansion) just made lot of sense at this particular juncture. We got better and we helped our TV position," Thompson said.