KANSAS CITY, Mo. — Matt Nagy likes to describe his current situation as “back in the weeds.” After four years as the Chicago Bears head coach, he’s returned to Kansas City as a senior assistant and QBs coach for Andy Reid. And that’s a significant change. Nagy is now in charge of 3-4 people in the QB room instead of 250 with the Bears. His son also mentioned recently that Nagy seems to have more free time than before. “There’s a little bit of humility that you have to have to do this,” Nagy said of accepting the position coach job with the Chiefs after the Bears firing, “but I really cherish i…