Dude, risk analysis? Really? I don't really care. It was a successful challenge, and I'm expecting the Bears to make that [expletive] stop on the 4th down, too. The refs made a bad call, and I for one am glad the coach can recognize that and hold them accountable with the challenge. Don't really care to discuss it more. Yeah really, every coaching decision is made based on risk vs. reward. In this situation, the potential reward (a 4th and an inch that gets converted into a 1st 90-95% of the time) is not worth risking a TO that the Bears might really need in a close game. Also factoring in how hard it is to overturn a ball spot when you are talking about a matter of inches.