Belichick said Daboll will have a role similar to what Josh McDaniels had when he returned to the Patriots last year during the playoffs, in that it won't be specific for now.
Daboll first came to New England in 2000, after two years as a graduate assistant at Michigan State, where he worked under Nick Saban and established his connection to the Belichick coaching tree. Initially Daboll was a defensive coaching assistant, but from 2002-06 served as the receivers coach.
When Eric Mangini left the Patriots to become head coach of the Jets in 2007, he took Daboll with him, and Daboll became quarterbacks coach there from 2007-08, and when Mangini then moved on to Cleveland, he brought Daboll as his offensive coordinator.
The 37-year old spent the 2011 season as the Dolphins' offensive coordinator and 2012 as the Chiefs' offensive coordinator.