Players can strike out a lot and still have high OBP's as long as they also walk a lot. Bryant will draw walks so I think you don't need to worry about him. If Baez cuts down on his K's, I imagine a byproduct of that will be him walking more. Alcantara showed decent patience in the minors over the last couple of seasons. If he can turn his game around I assume he'll be alright. Castro... well, he's probably just gonna be himself. If Bryant really is the wunderkind we all hope and think he'll be, but he strikes out at a large clip, he should still be fine. Trout struck out 184 times last season and still had a .377 OBP because he was capable of drawing 83 walks. Stanton struck out 170 times... .395 OBP with 95 walks. I think Bryant's offensive profile could be considered similar to them in that particular regard.