Normally, no you couldn't (or wouldn't.) But you said it yourself, versatility of Villar and Perez makes it possible. At least to start the season. Plus, for better or worse, they seem dead-set on having Gennett ready to play other positions in a pinch. It's not ideal roster construction, but should be very manageable. Don't forget Brauns versatility. Not only can he play RF but we know he can play 3B and SS. He could probably catch in a pinch too.