I posted this over at the FanGraphs forum, but thought I should ask it here as well. Tell me if this stat exists.
Say a rangey shortstop gets to a ball that would not be caught by 55% of shortstops (per UZR or +/-), but bobbles it and the runner gets on base. The play gets scored as an error by a zealous home scorer.
Now, for UZR purposes, I understand a player is credited only for plays on which he makes an out (correct me if I'm wrong). But if you isolated all the plays on which a given player with above average range made an error, would it be possible to determine if that error was one which would have been a hit anyway if the player had been one with league average range? Or do successfully converted plays necessarily contribute to league average UZR, making it impossible to have above average range if you are simply getting to balls and not converting them into outs?
What I'm envisioning is a stat called "mitigated errors" or something. Now I realize such information would have its limits, but at the least you could look at, say, Starlin Castro, and determine of his 27 Errors last year (16 FE) how many would have fallen in for a hit anyway if a shortstop with league average range were fielding the position.
This may somehow be factored into UZR anyway, I am mostly wondering if anyone has compiled that isolated data and whether it is available (I'm sure somebody has). Thanks!