In football, the 2 minute warning seems to work fairly well to wake up teams from Denver/Dallas and kick them in to high gear. How many times did Staubach, Aikman and Elway cause more scoreboard damage in 2 minutes than in perhaps the rest of the game? Plenty.
One thing you couldn’t do in that 2 minute period was make mistakes. Former Dallas Cowboys coach Tom Landry was quoted in last month’s GKIC newsletter as saying something along the lines of “the Cowboys always knew we could always come back from one mistake, but two mistakes tended to beat us”. 2 minutes isn’t very long if you use that time to make mistakes.
At my favorite coffee shop, the 3 minute warning is what gets you.