With Castellanosâ horrible defense it is not that clear he is not replaceable. Baseball Reference has him at 0.8 WAR over the last 3 seasons total, even last year he was only at 1.0 WAR.
The problem is really his defense where he has -4.1 WAR over the last 3 seasons. Even with last years very good offensive season (2.5 WAR) he is still at 98 OPS+ in his time in Philadelphia.
Even at his best he is bad. Pache would probably outperform him strictly because he could put up a positive defensive WAR and honestly couldnât be worse offensively than he has been this year.
It isnât one month, it has been 2 seasons and 1 month. The money is spent. He should be our #4 OF and PH until he proves otherwise.
Pache has 1.3 dWAR over the last 3 seasons, which adds up to about 1/2 season of innings. He has 0.8 WAR in the last 2 seasons in Philly total, strongly because of his defense.
The other advantage of benching Castellanos is it would stop Rob from doing silly things like batting him cleanup and making the problem worse. He would certainly hit Pache 8th.