Armond Armstead moves to the middle

Armond Armstead prefers defensive tackle to defensive end.

So, after a year-plus playing on the outside, Armstead jumped at the opportunity to switch back to the three-technique tackle spot when when defensive line coach and defensive coordinator Ed Orgeron phoned on Monday and told him that he saw the Trojans' line shaping up better with Armstead on the inside.

See, Armstead came to USC as a defensive tackle and logged some significant time there as a first-year freshman in 2008. But Jethro Franklin, the Trojans' defensive line coach under Pete Carroll for the 2009 season, saw him as an end -- and so Armstead moved to end in the spring of 2009.

That's where the 6-foot-5, 295-pounder had been since, despite breaking his foot in fall camp last year and missing the first five games of the season. Now, with his move inside, fellow junior Jurrell Casey will slide over to the nose tackle spot and Nick Perry will slide into his end spot opposite Wes Horton.

See what Armstead had to say about his position switch, the readiness of Perry and the defensive line's overall performance against Hawaii in a video interview taken after Tuesday's practice: