MIAMI — He would think of these ideas while floating in the backyard pool. The kids would later joke, lovingly, that Hank Stram was coated in so much tanning goop that it looked like a small oil spill was encircling him there on the raft. But these sessions would end up producing some of the most important schematic advances in football history. The moving pocket. The I formation. Perplexing backfield motion. And, of course, the infamous 65 Toss Power Trap, which, until the Chiefs touched down at Super Bowl LIV this week here in Southern Florida, may have served as the single most memorable moment in franchise history.