Joe Posnanski has an aticle at SI.com where he discusses with Bill James how pitch counts have changed baseball over the past few decades. They talk about Nolan Ryan's crusade to increase the workload of his starting pitchers in Texas. Both of them wonder why 100 became such a magic number for pitchers. Of course, everyone in baseball wants to keep their pitchers healthy, but where is the proof that 100 pitches should be the limit for starters -- because it's such a nice number? Why not 110 or 120 or 130? And we know that Bill James loves any discussion that confronts conventional wisdom. Rob Neyer also gives his two cents on their discussion.