Let's talk lefty-righty splits, platoons and call-ups...
Players like JD, Devrs, Bogey, Verdugo and Vaz/Plawecki will never be platooned. They may be strategically given their day of rest vs an off-handed pitcher, but they are everyday players.
Players like Arroyo, Marwin, Santana and Duran seem to hit both sides nearly the same. Arroyo actually has a revers career split.
Career (2021)
v RHP/ v LHP
.676 (.668)/ .629 (773) Arroyo
.726 (.595)/ .723 (.697) Marwin
.727 (n/a) /.694 (n/a) Santana
These players have significant career splits:
vs RHP/ vs LHP
.650/1.034 Dalbec (.459/1.016 in 2021)
.702/.553 Cordero (.451/.432 in 2021)
.707/.903 Renfroe (.590/.788 in 2021)
.677/.815 Kike (.731/.706 in 2021)
Minors:
.898/.534 Ockimey in 2019
.968/.586 Ockimey in 2018
The Cordero-Renfroe platoon has been talked about a lot, but Cordero may be sent down, soon. That leaves Kike or Marwin as "platoon" choices for Renfroe, unless we call up Santana or Duran and add them to the mix.
The first base position offers another platoon choice: Marwin vs RHPs or call up Ockimey or Santana to play 1B vs most RHPs. Or, we just give Dalbec a longer look vs righties.
Kike's .677 career OPS vs RHPs is not really bad enough to need a platoon, but Arroyo at 2B and Marwin, Duran or Santana in the OF might offer a better choice vs righties.
Basically,
Renfroe should not start vs a RHP.
Cordero should not start vs a LHP.
Dalbec needs to be watched closely vs RHPs.
Dalbec, Renfroe & Kike need to play everyday vs LHPs