Usually the source for my posts is whatever random baseball thought is kicking around at a particular time. Lately, it’s positional relativity - the fact that we have to adjust our expectations for a player depending on what position he plays. One of the reasons the Yankees’ lack of production from first base over the past couple of years is so concerning is because first base tends to be a pretty offense-heavy position.
Conversely, Gary Sanchez plays a position that’s actually not very good, relatively speaking. I think as Yankee fans we’ve been spoiled, having Jorge Posada hit so proficiently behind the plate, and even Brian McCann was better than most during his brief stint in the Bronx.