In 1952, 11 years into Musial's solid gold career, he had a "down" year:

Year HR RBI
1949 36 123
1950 28 109
1951 32 108
1952 21 91

Whoa...do you think in STL they thought that Stan was in trouble, and perhaps should be traded?

Year HR RBI
1953 30 113
1954 35 126
1955 33 108

I'll let you draw your own conclusions.