VERO BEACH, Fla. — Over three days of umpire camp — not to be confused with umpire school, more on that later — there is little attention paid to the strike zone. I’m loath to lead with a detail like that, which lends itself to too many punchlines. At ump camp, which is focused on education and not even evaluation, they don’t teach students how to distinguish between balls and strikes and isn’t that just rich? No wonder they’re so bad, you’re thinking, or getting ready to tweet alongside a screengrab of this paragraph. No wonder they’re all getting replaced by robots.