With its four most prominent football programs leaving for a reconstituted Pac-12 Conference, the Mountain West has reached an existential crisis. In fact, it’s unknown whether its holdovers will stay or bolt.

Should the Mountain West want to remain intact, it will need to target replacements for Boise State, Colorado State, San Diego State and Fresno State. But which additions make the most sense? Do any current FBS programs fit geographically? Can the Mountain West persuade prominent FCS programs to also take a leap upward?

As speculation swirls about other departures, here’s a look at the top candidates for the Mountain West should it stay together as a conference.

North Dakota State has won nine FCS championships since 2011 and boasts a 129-17 record over the past 10 seasons. The Bison regularly traveled to FBS power conference teams over the past decade-plus and won games, including against defending Big 12 champion Kansas State and Big Ten runner-up Iowa. North Dakota State’s yearly attendance averages have been between 15,000 and 20,000 per game, and Fargo has hosted ESPN’s “College GameDay” twice. Inviting the Bison instantly would provide the Mountain West with credibility, stability and a College…