I realize you're being hyperbolic, but I don't think Baez's OBP is going to be the cataclysmic disaster you're implying it would be. I think he'll be closer to .350 than .300, personally. I suppose if he's a good enough hitter hell have a highish OBP from being pitched around and a high average, but a .260/.310/.450 type line is still a pretty likely outcome. If Javier Baez's likely outcome is as a .760 OPS hitter then let's not hesitate to move him for someone like Stanton ASAP. Maybe I'm optimistic, but I like to think Javy is perennially going to be above an .850 OPS when he settles in and adapts to big league pitching. At the very least an .800 OPS should be cake for a guy with his power. Castro, at the moment, has a .767 OPS. He's drawn 26 walks. He's a good bet for 15-20 homers. I think Javy has better patience than Castro, and he obviously has more power. A .760 OPS is basically another Starlin Castro, which is fine, Castro is a great player, but I don't think for a second they'll be matching up, OPS wise. I fully expect a player with 40 home run power to put up and OPS of .800 at the very least. If he's a .760 OPS guy I'll be very disappointed.