Peter Gammons: Griffey and Piazza defined different temperatures of cool

COOPERSTOWN, N.Y.—On Friday, when Ken Griffey and Mike Piazza dine with the members of sports’ most select and earned society, they will fully grasp what this means. They will see how Sandy Koufax, Tom Seaver, Willie Mays, Henry Aaron, Johnny Bench and all the rest of the men with the HOF suffix act as peers, […]