This is the first time I’ve heard Sanchez described as having 20 speed, maybe that’s because he’s always talked of in comparison to Montero and they always say he’s more athletic (which is of course not saying much). Is there no chance that he could fake it in RF or 3b at least while in his mid 20’s?
He’s 19. Leave him where he is for the next three seasons. The majority of other scouting reports I’ve read on Sanchez indicates he has the tools to stick at catcher, which is different than Montero, who has always carried the label of a DH pretending to be a catcher. Sanchez is not in that category at all.