In just four seasons, the average length of games increased seven minutes, from 3:17 in 2013 to 3:24 this season. This has occurred even though the number of plays have remained virtually the same: 143 plays per game in 2013, 142.6 plays per game in 2016.
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These were some of the most common suggestions on how to shorten the games: a running clock on first downs (until the final two or five minutes of each half); shortening halftime; limiting the number of replays; reducing the number of timeouts; a shorter play clock; changing in-game substitution rules; and limiting the number of commercial breaks.
One Power 5 coach, who wished to remain anonymous, had the most radical suggestion of all. "Shorten the quarters from 15 minutes to 12 minutes," he said.