Of this bunch, the only keeper for me is the pitcher close-up and maybe the last batter shot if you crop out top. Others are either OOF or do not show any good action or faces (critical in sports photography IMO).
Specifically:
1. The first batter shot would have been great pose wise, but it is out of focus (delete). If it was in focus, Crop tighter to remove bottom and left sides.
2. outfielder - you could try cropping real tight here but again player is moving away from you...no ball in photo, so it does not show much (see HERE
to see an example of how you can crop hard (I'd guess my full frame was similar to your shot) and get all components of a good diving shot in the frame)
3. Best shot, nicely cropped. I prefer shooting from a pitchers open side but this is a good result from that side.
4. boring slide into third, no play at base, coaches ass is focus of foreground...DELETE!
5. I'd try to first save this by cropping tighter on play at base only. coach adds nothing to photo. Even with that though, again backs are to you so not the greatest capture
6. out of focus, peak action already over - DELETE
7. straighten horizon, try cropping horizontally at 8x10 ratio and this could work better. focus looks OK. And while on the subject, 99% of the time I will shoot batters in camera horizontally and then crop to vertical afterward as warranted.