Not sure if this has been discussed here, but Ricketts and Friedman share a background in finance. Per wikipedia on Friedman, "Friedman was then an analyst with Bear Stearns from 1999–2002, and then was an associate at MidMark Capital, a private equity firm, from 2002-04." And Ricketts, of course, "Thomas S. "Tom" Ricketts is chairman of the Chicago Cubs, and the chief executive officer of Incapital LLC, a Chicago investment bank that packages corporate bonds for retail investors. "
Not sure if that matters, but it does mean they probably value some similar evaluative tools, but in terms if finance & investment, and baseball.