Everyone so far has listed ways to make a 'better' show than SportsCenter, but I'm pretty sure that wouldn't work. If you want to compete with SC, you have to go the other way and make it 'worse.' You've got to make SC look like C-SPAN.
That's means louder, dumber, more combative studio hosts. More seizure-inducing graphics. More clichés.
Melissa Stark reporting nude (her segment could be called "Melissa Stark Naked" -- get it?). And if you're going to pander to black audiences, no more half measures. Just get 50 Cent and Beyonce to do your NBA segments.