Pereda is earning the respect and trust of the pitching staff. Yet there is value in having a a veteran presence like Mitch around. Doesn't look like either of them can play any other position, except first base, which is the usual catchall position for guys who don't fit elsewhere. But Naylz is there and has been our best 1B in a few years.
Not sure what they'll do, but I understand why it's not as easy a decision as we fanboys might think. Any move could affect team chemistry, which is always something that can be hard to track.