Go back to that Youtube video and look at the Texas Tech defenders at 0:50, 1:05, 1:35, and 1:42.
The defense can't tackle to save their lives. Or their #2 BCS ranking.
At 1:42, DeMarco Murray catches a pass at the right hash mark at the line of scrimmage and runs to the left sideline, encountering six defenders who can do nothing but lightly brush a single off-balance hand on his shoulder, like he's a dirty rag they don't want to touch with their dainty fingers.
Despite the fact he's gone ten yards backwards from the line of scrimmage and the defenders are on a straight line, Murray beats all six to the sideline, perhaps because these geniuses abandoned their angle and tried to chase him down in the backfield.
Murray heads upfield, where a DB with a perfect angle draws in his arms, turns his body sideways, and attempts to give Murray a side-shoulder bump, just to show him who's boss.
Another DB right in front of Murray decides to tackle him by stretching over his head and reaching for his waist. When this fails, he decides to jog along with Murray for a bit while holding onto his belt. His buddy comes over to help him with the reacharound. The incident ends when one of the disgusted suitors lets go and Murray runs out of bounds in heartbreak and shame.