Warfield was a versatile and intelligent leader as a player and manager. Known primarily for his fielding and baserunning excellence, he also had several good years at the plate. In 1922 he batted .342 for the Detroit Stars, and in four winters in Cuba he hit .304. He played on the Hilldale teams that won the 1923 through 1925 Eastern Colored League pennants. He became player-manager of the Baltimore Black Sox in 1929 and led them to the Negro American League championship. He and teammates Oliver Marcelle, Dick Lundy, and Jud Wilson became known as the million-dollar infield because their collective talents would have been worth a million dollars to the major leagues had they been white. Warfield was player-manager of the Washington Pilots when he died of a heart attack in 1932.