Actually SSs hit better than CFs, on average, and Rosario, right this second, is an average NL CF hitter: 246/312/404/715 (he's 260/299/414/713) On top of that he's 23 and in his second season and it's easy to imagine he'll improve, maybe a lotif he gets being a shitty SS off his plate. The comparison to Lagares isn';t valid beyond both guys not walking enough. Larages is 30, and in decline offensively and defensively, and is a whole level worse than an ascendent Rosario now