Fumble recoveries are largely determined by luck (causing fumbles is another matter, but recoveries average out to 50/50 in the long run); no team in NFL history has consistently recovered a majority of fumbles. The Bears scored directly off of a fumble recovery. Special teams scores are largely determined by luck (when the NFL record for punt return TDs is less than ten a year, you know not even the best can do it consistently). Misses on unblocked field goals are largely determined by distance, luck, and weather (and in Phoenix, weather is a non-factor). Without a fumble recovery TD, a punt return TD, and two missed field goals (one of under circumstances that make it nearly automatic for an NFL kicker), the game would have gone to OT, or the Bears would have lost.