The key to a successful 3-4 defense is a quality nose tackle. Chip Kelly will need a mammoth-sized man in the middle of the line, a la Haloti Ngata or Vince Wilfork.
The Philadelphia Eagles already signed former San Francisco 49ers nose tackle Isaac Sopoaga, a 31-year-old veteran who also has experience playing end in the 3-4. He’s not the nose tackle of the future but rather a stopgap until the team finds a quality player to play the position.
The 2013 draft has two elite defensive tackles or 3-4 ends who could conceivably go in the top five overall. Star Lotulelei and Sharrif Floyd are in a class of their own, but the next tier after them fills out nicely as well. This is as good a time as ever to get a top-notch defensive lineman.
*This article focuses mainly on the defensive tackles coming out in the draft. My previous article focused on the pass-rushers that played 4-3 end and 3-4 outside linebacker like Damontre Moore and Jarvis Jones.
All Scouting Combine results are courtesy of NFL.com.