Put everything in the crockpot with the exception of the rolls and the cheese slices.
Cook on low at least 10 hours. It's okay if it is in longer as it can be in the crock pot as long as 14 hours.
When done, pull out the bay leaf and with two forks, shred the beef right in the crockpot.
Put on heated crusty rolls and top with the provolone.
If desired, put under the broiler for just a few minutes to melt the cheese.
THIS IS DELICIOUS!