After showing flashes of promise in 2014, MLB pitchers have adjusted to Nick Castellanos. He has not adjusted back.
Throughout Nick Castellanos' rise through the Detroit Tigers farm system, fans were told about his immense offensive potential. While opinions varied slightly on just how high his ceiling was, many viewed Castellanos as a future .280-.300 hitter with 20-25 home run potential. He was (and still is) supposed to be a middle-of-the-order bat that will supplement Miguel Cabrera and company as the Tigers move into the latter half of the decade.
That rise to stardom hasn't happened yet.