As has already been stated, there isn't much of a plan B at this point so hopefully the team can improve (and improve dramatically). With a schedule that includes 4-5 road games against potentially ranked opponents (teams BYU has historically struggled against), this will need to be one of the best teams in BYU history to meet the goals and expectations from some fans.
I would be shocked if BYU is able to be better than 7-5 this year. 3-9 seems much more likely than 9-3.