The 2019 Replacement-Level Killers: Catcher
In a race for a playoff spot, every edge matters. And yet all too often, for reasons that extend beyond a player’s statistics, managers and general managers fail to make the moves that could improve their teams, allowing subpar production to fester at the risk of smothering a club’s postseason hopes. In Baseball Prospectus’ 2007 book It Ain’t Over ‘Til It’s Over, I compiled a historical All-Star squad of ignominy, identifying players at each position whose performances had dragged their teams down in tight races: the Replacement Level Killers. It’s a concept I’ve revisited on several occasions, both at BP and beyond; last year, I brought it to FanGraphs in an expanded format. With the July 31 trade deadline looming, it’s once again time to point out some of the bigger holes at each position among contenders, and it’s worth noting that this time, there’s no August waiver period for teams to fall back on.
When it comes to defining replacement level play, we needn’t be slaves to exactitude. Any team that’s gotten less than 1.0 WAR from a position to this point might be considered fair game, even if in some cases that means an above-average starter and ghastly backups. Sometimes, acceptable or even above-average defense (which, of course may depend upon which metric one uses) coupled with total ineptitude on offense is enough to flag a team. Sometimes, a team may be well ahead of replacement level, but has lost a key contributor due to injury; sometimes, the reverse is true, but the team hasn’t yet climbed above that first-cut threshold. As with Supreme Court Justice Potter Stewart’s definition of hard-core pornography, I know replacement level when I see it. Read the rest of this entry »


