FRISCO, Texas -- Kellen Moore is the new quarterbacks coach for the Dallas Cowboys after spending the previous three seasons as the backup QB to Tony Romo and then Dak Prescott.

Moore's move is part of a significant overhaul of coach Jason Garrett's staff. Although offensive coordinator Scott Linehan and defensive coordinator Rod Marinelli are returning, eight new coaches and two promotions were announced Friday.

Sanjay Lal, who has worked with receivers for four NFL teams over the past 11 seasons, is the new receivers coach in what could be a crucial year for 2014 All-Pro Dez Bryant's future in Dallas. Lal replaces Derek Dooley, who left to become offensive coordinator at Missouri.

The other newcomers are Paul Alexander (offensive line), Ken Amato (defensive assistant), Doug Colman (assistant special teams), Doug Nussmeier (tight ends), Markus Paul (assistant strength) and Kris Richard (passing game coordinator/defensive backs).

Ben Bloom was promoted to linebackers coach, and former special-teams assistant Keith O'Quinn will take over that unit.