sentences:  In 1946, Shaw took over the 49ers, and with the left-handed Frankie Albert leading and directing the attack, the team placed second to the Cleveland Browns four times (1946–1949) in the Western Division of the AAFC.In 1950, the 49ers along with the Browns and the Baltimore Colts merged with the rival NFL.In 1958, Shaw took over a last-place Philadelphia Eagles team and started rebuilding.