Every week, it seems like a new moral or ethical shortcoming tarnishes the reputation of yet another sports superstar. There's no need to name names or the charges. Enough ink has already been used reporting the allegations.

For better or worse, sports today provide one of the most visible platforms for modeling behavior. Yet, not everyone who stands on the pedestal wants the responsibility that comes with it. Some athletes even recoil at the idea of being a role model.

Still, there are others who give us hope. Men like University of Florida senior quarterback Tim Tebow, who welcomes and embraces the opportunity to make a positive impact.