Nothing about Josh Donaldson being great is surprising anymore. There was the late-career breakout in 2012, and then confirmation that the breakout was real in 2013-14. And then, of course, he won the Most Valuable Player award in 2015. We love stories about unexpected rises to prominence more than anything else, and that’s true within baseball and outside of it. Once a player reaches the elite and stays there, the story of the rise fades away, and consistent excellence has a strange way of becoming almost routine — whether it deserves it or not. (Note: it does not.) The really fun part comes, however, when great players do things to try and make themselves more great, pushing themselves past the already absurdly high plateau. From what we’ve seen so far this season, Donaldson appears to be embarking on that hallowed and honorable mission.
First, a little background to what we’re talking about. Donaldson based his breakout on better patience, all-fields power, and a few aggressive mechanical changes. Those mechanical changes were based on the leg kick and bat tipping of Jose Bautista, so it was a nice coincidence when the two were united on the Blue Jays last season. Here’s a couple GIFs that visually explain some of those changes, from a 2014 interview with Jerry Brewer:
2013 swing — smaller leg kick, controlled bat tipping:

2014 swing — bigger leg kick, aggressive bat tipping:

The latter swing is more of the hitter we know today — the guy who consistently murderizes baseballs — and we can see the quite obvious visual similarities to Bautista’s swing. It’s also the swing that, along with his great defense, vaulted him into the top of the WAR leaderboards over the past few years. Since he joined the Jays, however, Donaldson’s batted-ball tendencies have trended more toward his other power-laden teammate, Edwin Encarnacion. There’s certainly potentially something to gain from him moving more toward Encarnacion’s approach, as it has mimicked the sort of trajectory a number of players follow during single-season power surges. Here, allow us to consider how.
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