I see 2 what should be likely wins and 4 guaranteed losses (Auburn, BYU, Texas Tech, and Houston). All four of those teams have the horses and coaching for comfortable two score wins over Arandaball.
I have a hard time seeing us go 4-2 against the remainder of the schedule. Iowa State comes to town on November 7th for the Hound Out game, and yeah they have had a lot of turnover in that program. But Jimmy Rogers is a good coach, much better than Dave, and he'll have the Cyclones ready to play. I don't see us beating Arizona State in Phoenix, or Kansas.
That leaves TCU, Colorado, and UCF as must wins to even get close to 6-6.