From Seth Wickersham's excellent article about NFL coaches and their clock management skills entitled "3-2-1 ... Meltdown" on espn.com:
Not every coaching misstep is so obvious. New Browns boss Eric Mangini violated a key adage when his old team, the Jets, played the Bills on Dec. 14: If you're on D and need the ball back, never call time with between 2:10 and 2:00 left. Normally, an offense protecting a lead won't pass, lest an incompletion stop the clock. But if a defense calls time under 2:10, like New York did against Buffalo with 2:06 left, it invites the offense to throw the ball, since the two-minute warning will stop the clock no matter which play is run. Thanks to the TO, the Jets had to defend pass and run. Sure enough, the Bills spread the field and rolled quarterback J.P. Losman to the right. Luckily, blitzing safety Abram Elam forced a fumble, which defensive end Shaun Ellis returned for the winning score. Because of the win, no one criticized Mangini on his blunder—or his gamble, if you think he called time to bait the Bills—which only gives him more incentive to ignore the math. Nearly every coach works this way.