With all the recent hoo-hah about productive outs and the poo-pooing by ESPN talking heads Harold Reynolds and John Kruk about "lumbering sluggers" who "clog up the basepaths" (Kruk, at least, should know a thing or two about that), it's nice to see someone actually dive into a pile of game data to see what real effect baserunning speed can have on one's ability to score. Danil is your man for that, having kicked off a multi-part series to investigate the question. His entries so far are here, here, here, and here. I'm definitely looking forward to more. I do feel pretty comfortable in predicting that a slow OBP machine like Mike Hargrove will always be a better leadoff man/run producer than an impatient speedie like Omar "The Outmaker" Moreno, but I could be persuaded that there's some tradeoff and overlap involved.