Zamora's underlying numbers are not good. I don't see him being able to hit MLB pitching.
Monasterio - .244/.329/.449 expected slash, .338 xwOBA, 89.6 Avg EV, 38.5% hard hit, 12.8% barrel, 27.0% whiff
Zamora - .217/.351/.269 expected slash, .294 xwOBA, 86.4 Avg EV, 14.3% hard hit, 0.0% barrel, 20.3% whiff
Zamora's numbers are really bad. Just absolutely no pop in his bat.