This is really an interesting take on the piratical value of sabermetrics.
via: TangoTiger & Fangraphs
Fangraphs gives a familiar example:
Our forecasts aren’t so great that we can tell you exactly which free agent you should spend a lot of money on; our forecasts are good enough that we can tell you that Brandon League is not that free agent. Hitting Joey Votto second might be the statistically right thing for the Reds to do, but it matters less that Dusty Baker should hit Joey Votto second and matters a lot more than he shouldn’t hit Zack Cozart there. We can show, with a lot of evidence, that not hitting Cozart second would help the Reds a lot. Hitting Votto there, instead of some other non-Cozart hitter, would only help them a little bit more.
The value of conclusions that have come from statistical analysis seem to lie much more on the side of warnings rather than suggestions.