At most any point. He's major-league ready defensively at catcher and he hit AA hard at 23. That's more valuable than a CF even with equivalent offense.
Pache's still young, but last year was basically zero progress for him.
Also, if Oakland wants to put him in CF, go see if they'll trade Laureano. He's still suspended for juicing, so that should make him cheap (and there's 25 games or so left to run, so contenders might not want in).
I know you have to miss postseason if you’re suspended for PED. But what if suspension crosses two seasons?