Nix, Tuitt have different styles and personalities _ which worked wonders for No. 1 Notre Dame

Notre Dame players watch from the stands during Media Day for the BCS National Championship college football game Saturday, Jan. 5, 2013, in Miami. Notre Dame faces Alabama in Monday's championship game.(AP Photo/Chris O'Meara) (The Associated Press)

Notre Dame nose guard Louis Nix III hardly ever quiets down. Defensive end Stephon Tuitt speaks in a voice that's barely above a whisper.

Maybe that's why those two Fighting Irish defensive linemen complement each other so well.

Nix and Tuitt are the leading tacklers on the defensive line for the top-ranked Irish, who take on No. 2 Alabama in the BCS title game on Monday night. Nix was selected as the team's defensive lineman of the year, and Tuitt has earned a slew of postseason awards after a team-high 12 sacks in the Irish's first 12 games.

Off the field, they say they talk all the time.