My Big Sky playoff predictions:
UND and EWU are a given. This years playoff pool is too shallow and the bracket will have a lot of holes to fill. No way the committee doesn't look to the Big Sky for more teams.
First, they will give the nod to Weber. Weber is looking to finish the conference in third and has losses to good teams. They played tightly in all of those FCS games. Weber also has a win over the other playoff hopeful, Cal Poly. This makes their 7-4 season more forgivable.
I think they will look for a fourth. Cal Poly will win this upcoming weekend (book it) and Montana will win as well (slightly less confident about this). I honestly think they give Cal Poly the nod in this situation as they have the head to head win over Montana and a high quality win over South Dakota State.
After all of this, Montana is the only team still a viable option for playoffs (in the Big Sky). Montana's hopes lie entirely on whether or not the committee lets a fifth playoff team into playoffs. They very well might... it's just such a shallow pool of bubble teams this year. Montana's playoff hopes are basically a coin flip (in this scenario) and I am going to think that the committee has Montana sit for playoffs and goes for more MVFC teams. I just don't see them grabbing a team that will finish, at best, tied for sixth in the conference.
The only other way I can foresee this going down is they pick up Cal Poly first, because of their wins against Montana and SDSU. However, they will still pick up Weber before Montana, because Weber beat the playoff team Cal Poly and finished higher in the conference. Montana has a real uphill battle to get into playoffs.