Personally, I wonder if it is safe to practice on a rodeo field like that. Remember how we had a problem with staff infection last year? If we end up practicing on a rodeo field with all kinds of cow and horse poop there, even if they've cleaned it up there will still be lots of microbes left from the poop on the field. They will be practicing there in pads, during training camp when there is full hitting involved. Not a great idea, IMO.
EDIT: Although I do like the idea of our OL trying to block a few Brahma Bulls hehe..