blue pits

I had a blue pit, well a blue in color, guess I should hav looked up her exact breed before calling her a blue pit, but I call them the color they are. I rescued her from the ghetto part of my area and was pulled down bad, had a bag full of milk and no puppies in sight. She wondered up to a co-workers house and wouldn't let them mess with her, so I gave it a shot and didn't have an issue putting my hands on her and getting her home. I gave her a couple weeks of r&or with plenty of feed and she got back into what she should look like. When I tried her as a catch dog, she didn't have the legs under her to keep up even in a small pen, but once she figured out what I wanted of her, she would lock on once she got there.