One of these days, in the not-too-distant future, the Yankees will have to contend with life sans their future Hall of Fame closer, Mariano Rivera, who set the all-time save record this year. Perhaps his replacement will come from the batch of relievers profiled in Charley Rosen’s Bullpen Diaries: Mariano Rivera, Bronx Dreams, Pinstripe Legends, and the Future of the New York Yankees.

Rosen analyzed each game during the 2010 season from spring training through their American League Championship Series loss to the Texas Rangers, and graded the performances of each man out of the ‘pen. He fills in the down time with snippets of history and anecdotes, but with all those pitching changes, fans might grow nostalgic for the days when a starter was expected to go more than a mere five or six innings to be deemed as turning in a quality performance.