Getty Quarterback Jalen Milroe of the Seattle Seahawks. The Kansas City Chiefs have won so much over the last decade, and clearly had endless fun doing it, that it’s hard to imagine anyone in the NFL with something to offer not wanting to join the party in K.C. But there is one irrefutable player type that serves as the exception proving this rule — the quarterback itching for a starting job. Some contend that the backup QB gig is the best in sports. You make $3-$5 million per year, go to air-