When you think about it, isn't a football coach a sort of glorified traffic cop? No? OK, I fail at analogies. Wait, what about the whistle? Still nothing? Damn it. Well, the reason I mention it is that Jim Harbaugh on Tuesday busted out the most arcane, off-the-wall reference I've ever heard in an interview with an NFL coach, and that's saying something considering I've heard a few by Barry Switzer and Denny Green.