Posted by Steve Lombardi on September 29, 2007
I noticed a comment from "jmvbaseball" at another entry to the Stat of the Day blog that asked: "The Yankees only have 3 pitchers with 100+ innings. Have any other teams made the post season with such a flimsy rotation?"
Thanks to Baseball-Reference.com's Play Index Pitching Season Finder, we can look up the answer.
The 1995 Reds only had two pitchers with 100+ IP (Pete Schourek /John Smiley) - and they were a post-season team. But, that was a shortened season.
If you're looking for the last full-season that a post-season team had only three pitchers with 100+ IP in a season, that would be last year - when the 2006 World Champion Cardinals had only three hurlers meet that mark: Jason Marquis/Jeff Suppan/Chris Carpenter.
The full-season post-season team before that to do it was the 2004 Astros - with Roy Oswalt/Roger Clemens/Tim Redding. The full-season post-season reaching 2002 Cardinals also did it - with Matt Morris/Jason Simontacchi /Woody Williams. And, the full-season pennant winning 1997 Indians only had three 100+ IP hurlers: Charles Nagy/Orel Hershiser/Chad Ogea. That same season ('97), the Giants reached the post-season with just three reaching this mark: Kirk Rueter/Shawn Estes/Mark Gardner.
So, to answer the question, yes, it's happened before.