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Under current NFL rules, a coach may challenge two calls per game, and if replay reviews prove him right on both of them, he gets a third challenge. Three is the limit.

If a proposal before the Competition Committee this week is approved, there will be no limit, and coaches can keep challenging as long as they’re successful.

Washington has proposed a rule that would permit an unlimited number of successful challenges. If the challenges are unsuccessful, the limit would still be two.

That rule proposal would seem to have a lot of headwind in an offseason in which the NFL has made faster-paced games a top priority. More challenges means more replay delays, and NFL Commissioner Roger Goodell has acknowledged that replay delays are a problem.

So it seems unlikely that the rule would be adopted. A team challenging four, five, six or more times a game could slow the game to a crawl, even if the coach is correct. Of course, the real issue is that officials shouldn’t be making enough mistakes that a coach could have four, five or six successful challenges in the first place.