Former Buffalo Bills national scout Marvin Z. Allen officially joined the Miami Dolphins Tuesday, Jan. 29, as assistant general manager. The Dolphins also announced the following promotions: Ron Brockington to senior national scout, J.P. Correia to player personnel scout, Adam Engroff and Anthony Hunt to co-directors of player personnel, Brandon Shore to vice president of football administration and Matt Winston to assistant director of college scouting. They will all report to general manager Chris Grier.