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Remember how you felt a couple years back, when it became clear that the Kansas City Chiefs of Andy Reid and Patrick Mahomes were going to be playoff contenders pretty much as long as they stick together? Or back in the early 2000s, when it was obvious that Bill Belichick and Tom Brady had found a way to put the Patriots in a higher gear than the rest of the league? Or, going back even further, when Joe Montana and Bill Walsh discovered NFL truths that future players and coaches still haven't learned?