yes...
the criteria:
"*The evaluation includes the following for each conference (1) the ranking of the highest-ranked team in the final BCS Standings each year (if a conference does not place a team in the final BCS Standings, then its highest-ranked team is determined by the conference member that has the highest average ranking in the computer rankings used in the BCS Standings), (2) the final regular-season rankings of all conference teams in the computer rankings used by the BCS each year, and (3) the number of teams in the top 25 of the final BCS Standings each year, with adjustments to account for differences in the number of members of each conference."
How it affects the mtn west: the one they don't qualify under is the final ranking of ALL teams. Under the current system both the big east and the ACC had better bottom of the conference teams, and poorer top of the conference teams. results in scoring worse at top of the conference and better at the bottom.
New Mexico, UNLV, CSU and Wyoming have all be dreadful during the 08/09/10/11 eval period. They really drag that number down.
The only good thing about expansion, as seen by the BCS is that Utah now plays in the PAC10, and BSU and TCU must play each other every year.
http://www.bcsfootball.org/news/story?id=5126859