BOISE, Idaho - A new football rule aimed at shortening college football games has football coaches in the Western Athletic Conference scratching their heads in amazement.The new rule centers around when the clock starts following a change of possession and on kickoffs. The rules are 3-2-5 and 3-2-5-e.Under the old rule, the clock would not start on a kickoff until the offensive team catches the ball. Now, the clock will start when the ball is kicked.Also, when possession changed, the clock never started until the ball was snapped.Now, the game clock and the 25-second clock will start when the ready-to-play …