Wade Phillips. Hands down.
A defensive lineman is any of the down positions on the defensive side of American football. Although alignments vary, the most popular consist of either 3 or 4 down linemen. On a 3 lineman set, there are 2 Defensive Ends which bookend an often large Nose Tackle. In a 4 lineman set, the Ends bookend 2 Defensive Tackles. The primary job of a defensive lineman is to gain penetration past the line of scrimmage to disrupt an offensive play. The best results are a sack on the quarterback or tackling a ball carrier for a loss of yardage. There are several variations of defensive lineman: Nose guard, Nose tackle,Tackle, End
Alabamas defensive coordinator
The best defensive team right now is the Tennessee titans
Lawyrence Taylor (retired) is the best defensive tackle in the NFL.
The center is one of the five offensive linemen that are supposed to block for the quarterback and running back. After snapping the ball to the quarterback, the center will block a defensive tackle or linebacker. The center is not eligible to catch a pass. Generally, the center is one of the best athletes on the team and he may also play a defensive position.
Cases can be made for Bruce Matthews, Jackie Slater, and John Hannah.