This is clearly false, if you look at every possibel stolen base situation and you assume the runner advances it ALWAYS increased a teams chances of scoring runs. http://baseballanalysts.com/archives/2006/07/empirical_analy_1.php You are talking about the correlation between runs scored over an entire season with stolen bases for a team. This correlation is low because runs are most strongly correlated with OPS so they follow that trend and number of stolen bases do not always correlate well with OPS so runs and SBs have a lot of scatter. However, just because leading the league in SB will not cause you to lead the league in runs does not mean they will never cause you gain some runs. They only weakly correlate to runs over a long season. This is where good managing can come into the picture, just because you know you should not run at every oppurtunity does mean there are no good oppurtunities to run. Example, base stealer on first, 2 outs, Counsell up. The chances of scoring from 1st are much less that from second since Counsell is mostly a singles hitter. The famous RoSox Dave Roberts stolen base in game 4 of the 2004 ALCS added 10% win probability, which is much, much higher than an average stolen base. That is an example of a good manager knowing when to take advantage of the stolen base. The reason Macha is a horrible manager is because he just plays it safe all the time. He knows overall you should not steal a lot so he just decides to never steal because he cant figure out the times when you actually should, thus making him a terrible manager.