The ultimate question on what level Rafaela's batting has to reach to warrant benching him comes down to weighing does the bat replacing his bat more than make up for the drop in defensive and baserunning value by taking away Rafaela from the starting 9.
Vs LHPs, it's a no brainer. Abreu is already platooned and some wonder whether Duran should be.
Abreu: .607 career and .721, this year. (GG RF defense)
Duran: .610 career and .568 this year. (Best runner of the 3)
Rafaela: .646 career and .693 this year. (GG type D and good runner)
Vs. RHPs: Anthony, Duran & Abreu all are ranked higher than Rafaela.
Now, let's look at 2B and DH, which can also involve 1B, if Romy plays 1B v L and not 2B, where Rafaela, DHam and Romy are choices. DH can be used by an OF'er, so Yoshida comes into the choice.
IMO, I already determined Rafaela starts vs LHPs in the OF, but not vs RHPs, unless an OF'er DHs. Let's look at the vs RHP splits:
Rafaela: .683 career and .715, this year (He's better vs RHPs, so far.)
DHam: .660 career and .587 in 2015. (Plus on defense at 2B, better baserunner than Rafaela.) At 2B: DHam is a close call vs Rafaela at 2B v Righties.
Romy is not really a realistic choice vs RHPs, especially vs Rafaela at 2B, but his numbers vs LHPs make him a great platoon with DHam at 2B or Lowe at 1B. (Lowe is MLB's worst batter v LHPs, this year.) I won't even list Romy's numbers vs RHPs. Count him out.
Yoshida is a legitimate contender for playing time vs RHPs, based on his career numbers, but not so much by 2025 numbers. .793 career and .643, this year.
So, it's Rafaela in CF vs LHPs and Yoshida vs Rafaela v RHPs. Career: Yoshida .793 v Rafaela .683, but 2025: Rafaela .715 v Yoshida .643. Seems like a close call to me- looking at only the offense. If you value recency and baserunning, Rafaela is the guy. If you value Career it's Yoshida by a little. Now, factor in defense, baserunning and allowing an OF'er to rest while DH'ing to the equation, and it's Rafaela v RHPs. Now, how low can Rafaela go vs RHPs to flip the choice to Yoshida? That's not an easy question, because we are basing it on what we think Yoshida will be doing, if Rafaela is free-falling his OPS into the .500 to .650 range.
Do we choose a .700 Yoshida over a .600 Rafaela?(.650 v .550 and so on...) How about ,650 vs .600? To me, I'd choose Rafaela over Yoshida up to 100 points and maybe beyond. His D and his running make a difference. A big difference.
I think I've said all I can about Rafaela, and it has already been way to much. There should not even be a need to defend his playing time or whether his overall value is plus vs "suck."