rest - http://espn.go.com/college-football/...y-subs-defenseThe NCAA football rules committee is proposing changes for the 2014 season that would loosen the reins on defensive substitutions and lessen the penalties for targeting fouls called on the field.
The committee's proposal would allow defensive players to substitute within the first 10 seconds of the 40-second play clock, except for the final two minutes of each half.
Offenses that snap the ball before 29 seconds remain on the play clock would receive a 5-yard delay-of-game penalty.