Sources: Houck to coach Cowboys' offensive line

Dallas Cowboys owner Jerry Jones not only opened up his checkbook for Jason Garrett, he reunited with offensive line coach Hudson Houck, who agreed to a three-year contract Thursday worth an estimated $3 million, team sources told ESPN's Chris Mortensen.

Houck, who coached the Cowboys' line for two of their three Super Bowl titles in the '90s, will replace Tony Sparano, who was named the head coach of the Miami Dolphins on Wednesday. Houck had been dismissed as the Dolphins' line coach when Bill Parcells was named vice president of football operations in Miami.

Garrett was a reserve quarterback during much of Houck's previous nine years in Dallas. Garrett served as quarterbacks coach on the same staff with Houck in Miami for before being named the Cowboys offensive coordinator in 2007.

Chris Mortensen is an NFL analyst for ESPN.