On and off the football field.
Tebow demonstrated his signature poise in a recent interview with Hannah Storm, presumably as part of ESPN's effort to keep "Tebowmania" going strong long after the Super Bowl. In typical Tebow fashion, he deferred credit to his teammates when discussing his surprising successes from the 2011 season and emphasized how thankful he was for the opportunity to play, rather than dwelling on any bitterness that the preseason kerfuffle around Broncos camp might have precipitated.
When asked about handling criticism and outside distractions, Tebow reiterated the importance of remaining focused on the task at hand and not allowing himself to get caught up in the media circus that's formed around his every step since his Heisman Trophy days at Florida.
Of course, Tebow's "secrets" to success should come as no surprise to those who've followed his rise from third-stringer to Mile High icon (or have had the story shoved down their throats by the Worldwide Leader, et al).
Tebow may not have the requisite physical skills and abilities to be a great quarterback—not yet, anyway—but what he lacks in measurables, he more than makes up for in leadership, "stick-to-it-iveness" and mental toughness.
Those qualities are not easily taught and Tebow's lucky enough to have them in abundance.
Whether that's enough to please John Fox and John Elway, or win football games going forward, remains to be seen. That being said, if Tebow continues to handle the pressure and the expectations the way he has thus far and refines the physical aspects of his game then there's no telling how far the Broncos can go with him under center.