After Jimmie Johnson's shocking run to a seventh title unfolded in the closing laps at Homestead-Miami Speedway, USA TODAY Sports' Jeff Gluck and Brant James are left to wonder how many more championships are in the star's future. Plus, a closer look at Carl Edwards' act of sportsmanship at one of the lowest points of his career. And why Tony Stewart's last race fulfilled the three-time champion's wishes.