I thought it might be interesting to track the difference in walk rates and strikeout rates for the Cubs that had meaningful AB for the team both this year and last (Schwarber excepted – I used his 2015 numbers). The upper left quadrant is good (increased walks, decreased strikeouts), and the bottom right quadrant is the worst (decreased walks, increased strikeouts).
There isn't that much to say here. The three people you thought regressed this year did. It's somewhat encouraging to see so many people in the best quadrant.
I don't want this to be the main thread, so I'm going to comment back to other thread.