Five-Man Rotation (1948)

“Professing satisfaction with the five-man starting rotation he has developed–composed of Branca, Hatten, Barney, Roe, and Banta–manager Leo Durocher went shopping for Hugh Casey’s assistant today.” Dick Young, “Lip Okays Starters; Wanted: 1 Fireman,” Daily News (New York), April 13, 1948, p59

No earliest use given in 2009 Dickson Baseball Dictionary