RetroSeasons recaps past sports seasons through stories, photos, videos, and stats from every team, league, and stadium in history. Coverage includes the NBA, NFL, MLB and NHL, as well as vintage media from defunct teams and leagues.
Dan O'Brien Sr. was a prominent figure in the world of baseball, serving in various executive roles throughout his career. He is best known for his tenure as the General Manager (GM) of the Seattle Mariners and the Texas Rangers.
O'Brien began his career in baseball in the minor leagues, working his way up through the ranks. His first major role
