2013 NFL Mock Draft: Cowboys take Sheldon Richardson with 18th pick

The Dallas Cowboys enter the 2013 NFL Draft with needs on the offensive line, defensive line and secondary. With such a deep class along the trenches, they're in a good position to upgrade at least one of those positions with the 18th pick.

SB Nation's Dan Kadar released his latest mock draft on Monday, and he has the Cowboys selecting Missouri DT Sheldon Richardson with their first round pick:

A defensive lineman of Richardson's caliber would be difficult to pass up - particularly with Vaccaro off the board. The other option could be a guard like Jonathan Cooper or right tackle like D.J. Fluker, but Richardson grades out as the better player. He would also speed up the team's transition to Monte Kiffin's 4-3 defense.

Vaccaro would still be a fine pick if he falls to No. 18 here, and they wouldn't go wrong with either of the O-Linemen Kadar mentions. Still, Richardson is a good value here, ranking only behind Sharrif Floyd and Star Lotulelei as the best DTs in this year's class.

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