From General Manager Nate Idaho: After drafting what we felt was the best offensive player in the draft in AJ Green, we decided to turn our focus to the Defensive Line. Much like the Broncos, we are switching from a base 3-4 defense to a 4-3 and have more holes in our defensive line than swiss cheese. Our best player right now that possibly fits our new scheme is Matt Roth. We decided to pick the best Defensive player available regardless of position and we felt that person was Austin.
From our scouts at "new era scouting"
Marvin Austin is the most athletic defensive tackle we have seen to date. His ability to chase down the ball carrier and his freakish speed make him among the most dangerous defensive players in college football. He has the full arsenal of strength, size, speed and awareness that NFL General Managers are looking for in today’s defensive tackle.
While Austin may not be the pure player Suh is, he is a deadly combination of Suh’s ability to collapse the pocket and Gerald McCoy’s speed and athleticism.