It is noted that during his senior year, the Macon Telegraph called him the "real deal" after he dominated rival Tattnall Square Academy's star center Brandon Dillard.

In his 2005 senior season, Smith set a career high with six sacks while starting all 11 games at defensive tackle.

He finished his college career with 36 tackles for a loss, the second-highest total for a defensive lineman in Nebraska history.

The biggest play of his career came during Super Bowl XLII when Smith recorded half a sack on Eli Manning.

On August 17, 2009, Smith's career as a Patriot came to an end when he was traded to the Denver Broncos on the last day of training camp.

Doctors said he could go back to physical training and exercise, but he could never play football again because he was a lineman and would put himself at too much risk of permanently damaging his spinal cord and cause Tetraplegia (Paralysis from the neck down).