I certainly would NOT agree that Montana has won without having the most talented players. In the past 15 years, the Griz have had 17 players who have been at least TWO-TIME first-team all Big Sky players, four of whom were THREE-TIME first-team all league. And that doesn't include players like Scott Gragg, who was first-team only once, then had a long and successful NFL career.
I will buy the argument that you want to focus your recruiting in Idaho and surrounding areas, because you want players who "fit in" -- culturally, socially and academically, as well as on the football field. But I've said it before and I'll say it again -- I've never seen as small a state as Montana produce so damn many good football players. All-Americans like Dave Dickenson, Marc Mariani, Chase Reynolds, Dane Fletcher (MSU), Lex Hilliard, Kroy Bierman and on and on the list goes.
Idaho does produce some good players, but the best go to BSU, Idaho, BYU, Utah and Utah State, and the Bengals get to scrap over the remainder. The best Montana players, year-in and year-out, stay in state. There are some occasional exceptions (like the QB at ASU or the WR who signed with BSU this year), but the two Montana schools keep 95 percent of their talent in-state.
Again, you want to get all the Idaho players who can help you. But there aren't as many in Idaho as there are in Montana, and it's a helluva lot tougher to keep the best ones here.