Coach's Challenge

The referees in a game sometimes make calls that penalize a team when the team and coach believe nothing wrong has happened. In this case a coach throws out the red coach's challenge flag. This will put the play that was penalized under review until the referees can come to a mutual decision on reversing the call or not. So, why would coaches not challenge every call made against their team? It is because each game a team only gets two challenges for the whole game, and a third will be awarded to a coach who is able to get a call overturned. The challenge cannot be used during the last two minutes of each half. This can be related to an evil mother of a guy you either have dated or still date (which I feel bad for you in that case). She criticized most things you do, but do you make a witty comeback? No, you couldn't because then what would your guy think of you, talking to his mother like that? So you listen to her snippy digs at you: "You're hair looks better down, so it'll cover your big ears," or "I like my other son's girlfriend much better" etc. There is a time though, that you can challenge what she says, like the time she told you she prefers her cookies over yours, and you smile and say, "Really? Well, that's funny considering I borrowed your recipe." That challenged was awarded to you as she shut right up. Now you have earned the right to stand up for yourself another time. But if she made a comment right back... Run. Obviously, like football's two minute rule, there are times you cannot say anything, such as holidays, family reunions, and birthdays. This is the reason you see coaches going only with the challenges they absolutely know they can get overturned. Otherwise that evil mother will attack. this is an example of a challenge that could have overturned, impacting the score in a Steelers vs. Saints game: http://www.nfl.com/news/story/09000d5d81bd1187/article/no-replay-feed-influenced-steelers-failure-to-challenge-td-call