I think the 1970 staff would give this one a good run for it’s money…
Jim Kaat, Jim Perry (Cy Young winner) Burt Blyleven, Luis Tiant, and a spectacularly underrated Tom Hall….and in an era where you used a 4-man rotation. Tiant and Hall were pulling up the bottom of the rotation.
You had two hall-of-famers backing up the Cy Young winner. Then had to chose between Hall or Tiant on the 4th day. The only staff better that year was the historic Baltimore staff of Palmer, Cuellar, McNally, etc…and not by much.