Drawing solely on freely available baseball statistics, Michael A. Humphreys shows how to applyclassic statistical methods to estimate runs saved by fielders going back to1893. Humphreys tests his results against other fielding measures, includingpublished ratings based on proprietary batted ball location data, and explainstheir respective strengths and limitations.

[http://www.amazon.com/Wizardry-Baseballs-All-Time-Greatest-Fielders/dp/0195397762[

Let’s compare:

Iglesias, Drew, and Ciriaco in Baseball Reference, which lists under “Sabermetric

Fielding” a stat called Rtot/yr

[see below]

In 2012

Iglesias

rates a +16

Drew was a -12

Pedro Ciriaco rated a +23.

[Rtot/y = Total Zone Total Fielding

Runs Above Avg per 1,200 Inn

The number of runs above or below average the fielder was worth per 1,200

Innings (approx 135 games).

This number combines the Rtz, Rdp, Rof, Rcatch

numbers into a total defensive contribution.

[See the glossary section for a more complete explanation.

Provided by BaseballProjection.com]

With Ciriaco as an excellent defensive backup for Drew, and Iggy’s weak

batting skills, the Sox should send Iglesias to AAA to get ABs and work in the batting cage with Dave Joppie,47, who was promoted from the Portland Sea Dogs (AA) to become the new hitting coach for the Pawtucket Red Sox in 2013.