Ultimately it comes down to feeling like you can hit whatever a pitcher throws anywhere near the plate. Right now Byron Buxton whiffs way too much. I don't see any way around that problem other than many more thousands of reps in the cage, honing his pitch recognition, timing and mechanics. In games, the very first thing I'd do is work him on mashing first-pitch fastballs. Make it a little harder for pitchers to assume he's just going to stand there and watch the first heater go by. Thing is, Buxton still has to get better at barreling up the heaters in a wider zone, not just right down the middle. Pitchers have to fear throwing a first-pitch heater, or they'll just keep doing it because it's the easiest pitch to command. If Buxton can lay off the spinning stuff on that first pitch, it puts pressure on the pitcher to command a more difficult pitch on the first offering, which starts to get him more favorable counts. Of course, then Buxton has to be better at hitting off-speed stuff, so... Back to the batting cage.