Mastrianni, Ramirez and Pressly, are not proven and are at best 4th outfielders. Willingham is a terrible fielder. Arcia at best is a right fielder but is unproven, Collabello and Parmellee are first basemen who try to play right field. Hicks and Buxton both have a lot of potential, but that's all. A lot of players, not much proven quality. i like the idea of Hicks, Buxton, and Arcia in the outfield, but there are no guarantees with any of those three. De Aza would be good insurance at the right price.