moonslav relies heavily on stats, which you are more than willing to disparage, even to saying there is zero statistical evidence that CERA is real.
So let's try this. The best pitcher on this team beyond question is Eovaldi, but in Eovaldi's four starts in this crucial month of September, Vazquez has not caught him once. Plawecki has caught him in all four games.
Vazquez has however caught Eovaldi earlier in the season--as recently as last month, in fact.
To me that is pretty damning evidence that Cora, not Eovaldi, does not trust Vazquez with his best pitcher when every game is crucial.
Eovaldi is also having his best month of the season with an ERA of 2.70.
Not that it's all that relevant, but I'm of the opinion that a good catcher, in the words of the Scarecrow in the Wizard of Oz, needs a brain. Watching Vazquez on the basepaths this year has convinced me he doesn't have one--or much of one.