It does not look like Kegal will start (and may not even play) this game. With ASU's weak defensive line I believe that WSU will run the ball more often then usual, and should have good success. They ran the ball 49 times last week (out of a total of 71 plays) for 149 yards vs a solid UCLA DL.
Washington St has gone under this number (53.5) in 4 of their 5 home games this season (the exception being that slopfest vs Oregon St where the Beavers scored 23 defensive/special teams points). The average total in those 5 games was 41.6 points.
ASU on the other hand has gone over this number 3 of 5 times on the road, however, the average total of those 5 games was 49.4 points.
ASU is only averaging 18.4 ppg on the road vs far lesser D's than WSU's and should have difficulty scoring in Pullman.
WSU is averaging 29 ppg at home (ASU is allowing 30.8 on the road), so hopefully with Kegal questionable for this game, the weak Devil D can at least hold their own (and if the Devil offense doesn't give WSU too many short fields via the turnover as WC Bias suggests they might) and keep this game under the total.