I have a way to cook a roast that is always tend. The secret is to use a slow cooker bag and instead of pulling the bag down the side of the crockpot, fold it back over the roast.
I use McCormick stew packet and 2 cups of diet Dr Pepper to mix the packet in. If you don’t have Dr Pepper you can use beef broth. However, a pop product is better. The answer is the slow cooker bag!