by maligned » Fri Jan 06, 2006 1:49 pm
Here's a summary of the baseball theory that is leading GMs like Theo Epstein and Billy Beane to almost completely abandon bunting and basestealing:
1.You can make an accurate prediction of how many runs any team will score by multiplying its OBP times its Total Bases. This will be a pretty good estimate with all teams.
2.You can make this prediction even more accurately by figuring in extra values for bases earned through stolen bases, walks, HBP, etc. and extra outs recorded through caught stealing, sacrifices, double plays, etc.
3.This type of projection has led to some very, very accurate formulas being derived that tell us exactly how the value of an extra base from a stolen base or sacrifice compares with the value of a base earned when a hitter singles, doubles, etc.
4. In general, extra bases earned from stolen bases and sacrifices are only HALF as valuable as bases earned through normal hits.
5. The outs you give up from being caught stealing and making sacrifices far outweigh the final value of bases you earn when you are successful.
In strat, if I want to know how efficient someone's offense is, all I have to do is multiply their OBP*SLG*AtBats. (This is the same as OBP*TotalBases). Then, if the value you get is higher than the actual runs a team has scored, you know the offense is inefficient. If the value is lower than the actual runs a team has scored, the offense is being efficient. With the inefficient case, all I have to do is look at the caught stealing and sacrifice lines on the stat pages to see why the team's offense is being stifled.
In this live ball era, you are just wasting too many outs by being aggressive with stealing and bunting. It feels like it should be the right thing to be aggressive. The problem is that it's much like shooting too many 3-pointers in basketball or throwing deep too many times in football. Aggression is nice, but wisdom beats overaggression every time.
Finally, with baserunning: I haven't really figured out how HAL determines his different levels. The problem with conservative is that HAL won't try to go home enough. This is the one base that needs to be sought after aggressively. For example: If there are two outs, and you have a 40% chance of scoring from second base on a single, you should probably try to go. Your next hitter probably has less than a .400 OBP, which means you have a better chance of scoring the run being aggressive than you do of the next hitter extending the inning. Most of the outfield throwing situations are going home, not to third (and never to second). I set my baserunning to normal, almost never get thrown out, and regularly score runs from first on doubles and second on singles. If I'm on conservative, I almost always get stopped after one base on singles and two bases on doubles. I missed out on numerous runs I could have scored until I realized how this was working.
Just my two cents.
Last edited by
maligned on Fri Jan 06, 2006 7:25 pm, edited 1 time in total.