I love Witten...he's the best, but it's nice to see a TE who can actually run with the football, make someone miss or lower his shoulder and drive for a few yards.
It's the only think I don't like about Witten (knit-picking on a great TE)...the first guy who puts a hand or helmit on him, and he almost never even falls forward for any yardage...Witten has to be beyond the first down marker because if he's two yards short and a tackler hits him, he's not going forward for the yard.
It's nice to have two different styles.