When we tend to think about minor leaguers the first thing that jumps into most of our minds is “what is he hitting” or “what’s his ERA”. They come with numbers that give us perspective on the players performance. The numbers have been engrained in us since we were children. While the numbers have changed over the past 15 years in terms of what we now know is more important, we still lead with batting average and ERA for players when discussing them in most cases.
It’s not until we get pretty far down the list on most players that we begin to discuss something like their defensive value.