Via bceagles.com:
"Boston College offensive coordinator Gary Tranquill announced Tuesday that he has decided to retire.
Tranquill, who has more than 48 years of college and professional coaching experience, joined the BC staff shortly after Frank Spaziani was hired as head coach in 2009. In his two seasons, he was part of a staff that led the Eagles to 15 wins (8-5 in 2009, 7-6 in 2010) and two bowl games.
[snip]
A search for Tranquill's replacement will begin immediately."