The first three rounds are in the books, and the 2011 NCAA Tournament has produced quite an eclectic group of teams in its Sweet 16.
On the one hand, we havet top seeds Ohio State, Kansas and Duke poised to make a run for a championship.
On the other, there’s VCU, Richmond and Butler who are trying to upset two more teams and make the Final Four.
Every team left has stars, and every team left has players they rely heavily on.
A team’s “X-factor” might not necessarily be its best player, but rather the player that, in order for his team to win, must step up big when it counts.
Here are the ten biggest X-factors in the Sweet 16.