Errors and Those They Do and Don’t Affect
I don’t think it’s fair to say that errors have been forgotten, necessarily. Errors are still a big part of the game, they’re obvious when they happen, and they get factored into our advanced defensive metrics. But as those same advanced defensive metrics have grown in popularity, so has an emphasis on the importance of range. Evaluation of defense has shifted from looking at errors to looking at range, because errors are frequently flukes, and range is a more critical, informative component. If you can cover more ground, you can make more plays, and you can be a better defender at your position. Range is the thing. Errors are not so much the thing, anymore.
But though errors aren’t often discussed these days, they should be given their due, because they happen, and because sometimes they happen at most unfortunate times. Just the other day Matt Klaassen highlighted two meaningful errors in particular, committed by Brandon League and Carlos Pena. Both of those were recorded as reached-on-errors (ROE). According to Baseball-Reference, last season there were 1,781 ROEs in all. For the sake of comparison, last season there were 927 triples and 1,479 sacrifice bunts. We should discuss those ROEs just a little bit, because somebody ought to.

