Not to be pedantic, but in all likelihood it's one of Napoli and Santana in any given non-DH game, not both. Possibly the same for the Cubs re Schwarber, but on paper you're taking away relatively more of their standard firepower. Apparently Santana was taking flyballs in LF the past 2 days in Cleveland they are thinking of playing him out there. Don't underestimate the wind impact on defense for a team that never plays in Wrigley