Proefrock, the Orioles' director of baseball administration, will join the Phillies as an assistant GM. The Phillies announced the move Monday.

The Phillies selected Proefrock over Jim Duquette, a former GM with the Mets and Orioles; Wayne Krivsky, a former GM with the Reds; and Muzzy Jackson, a former assistant GM with the Royals.

Proefrock will play a major role in contract negotiations and other administrative duties. Prior to joining the Orioles in Oct. 2005, he spent 10 1/2 years in a similar capacity with the Rays.

Amaro recently named former Mariners executive Benny Looper the team's assistant GM of player personnel and promoted former Rays GM Chuck LaMar to assistant GM of player development and scouting.