Tranquill, who was head coach at Navy from 1982-86, replaced Steve Logan, who resigned recently following the firing of former coach Jeff Jagodzinski. Tranquill and BC coach Frank Spaziani have known each other for about 20 years and both coached on George Welsh's staff at Virginia in 1990.
"Gary Tranquill might be one of the best football coaches in America," Spaziani said in a prepared statement. "He is a great teacher, and I welcome his experience to our staff. I have coached with Gary, and I have coached against him. Believe me, I like coaching with him better."
Spaziani had to make a hire quickly with national signing day rapidly approaching and Friday's news that former offensive line coach Jack Bicknell Jr. had decided to take the same position with the New York Giants.
Tranquill brings ACC experience to the Eagles' staff, as he was offensive coordinator at Virginia Tech (1994), and held the same position at Virginia (1999-2000) and North Carolina (2001-2005). He was also an offensive coordinator for the Cleveland Browns (1991-93), and at Michigan State (1995-98). Most recently, Tranquill was quarterbacks coach for the Rhein Fire in NFL Europe during the 2007 season.
Spaziani, who was the Eagles' defensive coordinator for the past 10 seasons before being hired to replace Jagodzinski, still needs to fill his old position and replace Bicknell.
Heather Dinich covers ACC football for ESPN.com.