Honest answer - beats me. Probably more organizational memory remains from the Basabe era than the Reddick era.Honest question - how much of the scouting staff is still left from the FOs that drafted those guys though?
But just as honestly, if you add the injured Westmoreland and Kalish to the guys I mentioned and our current home grown outfield, the track record is pretty astonishing. You could even go back to Ellsbury, Murphy, and Moss. That's an awfully high hit rate: something like 8 ML-caliber OF, plus two more who would have been without tragic career ending injuries, plus Basabe — who looks very promising, but on whom the jury is still out — over the 16 years since 2002.
It's not as though there weren't high-profile misses to go along with the success: Matt Murton never amounted to much with the Cubs, nor Reymond Fuentes, nor Jason Place. Bryce Brentz, more recently. All were first rounders who didn't pan out. Still, we're turning draft capital and signing bonuses into major league outfield talent at a remarkable clip, and it's not just a product of a few outliers.
I posted above about the Giants' drought of homegrown All Star outfielders since Chili Davis in the early 80s. The Sox over the span discussed above have drafted and developed All Star outfielders in Moss, Ellsbury, Betts, and Bradley just since 2002. That's a lot.