IMO, this year with him and the team, it seems they've all matured and become even bigger leaders with more confidence, but especially him. No drama, no turnovers, and the most consistency of his career. Couple those things with the fact he's hanging out in the offseason with other champions like Tiger Woods, Phil Mickelson, Tom Brady, Peyton Manning, etc... it seems he's gotten that killer instinct instilled into him even more this year.