Wouldn't those numbers you are calling for be better than Schoop at a 575 OPS unless Cabrera can't play 2B at all (which again seems unlikely to me because he's a capable SS). You could even platoon him and Flaherty and probably get even better numbers
I see no reason to stick with Schoop well into May if he's still struggling if the alternative is an obvious upgrade, which that combination likely would be, IMO. Hopefully, and I think most likely, Schoop cements his hold on the job. But if he doesn't, Cabrera adds another potentially acceptable option at 2B in addition to depth behind SS.