WILLIAM TAYLOR

I've started doing obedience training with my 9 month old rottweiler/pitbull puppies. The obedience training is going well and I'm very excited that I've purchased the program. I do have a specific question that I'm hoping for which I am hoping to find a solution. My male puppy seems to do fine with not soiling in his crate if he's in there overnight and for short periods of time during the day. My female puppy, however, has no problem peeing and pooping in her crate even if she's only been in there for 20 minutes. She will do this even if she's been out and been outside and done her business. I'm not sure how to help correct this or what avenue to take to help her not defecate where she sleeps. Is there anything that I could be doing specifically that would help her get trained in this particular area? I appreciate any help and direction with my situation.