The Minnesota Vikings stumbled to an 0-3 start, endured seven games without superstar wide receiver Justin Jefferson and have started three different quarterbacks after king-of-durability Kirk Cousins went down with a season-ending injury. How, then, have they managed to maintain control of a spot in the playoffs with five games to go? That’s a tribute to Brian Flores, whose bold debut as Minnesota’s defensive coordinator will undoubtedly put hi…