My greyhound, Keno, had a severe pancreatitis attack shortly after I adopted him. I had given him a pig's ear and it almost killed him! Anyway, after he got out of the hospital, I did a diet similiar to the one you described above to let his pancreas rest and I gave him Prozyme. When I eased him back to kibble, I continued the Prozyme and was very careful about what he ate for the rest of his life. He only had one other attack, a minor one this time because I recognized the symptoms and acted quickly. That attack was triggered by a friend giving him food was on the forbidden list. He thought "just a little fat won't hurt him". Wrong!
Probiotics and digestive enzymes are both beneficial for digestion but aren't the same thing. Prozyme contains plant based enzymes(amylase, protease, lipase, cellulase) that help the body increase the use of the nutrients in foods and take some of the digestive burden from the body. Probiotics are are small organisms that help maintain the natural balance of microflora in the intestines. Acidophilus is one of the more common ones -- it's found in some brands of yogurt.
I've read that some people say you should not take probiotics with antibiotics, but I always do. Any time I have to take an antibiotic I always get a yeast infection if I don't take probiotics at the same time. Antibiotics always gave Keno terrible diarrhea (because they kill off the good intestinal bacteria along with the bad bacteria), so he always got probiotics too.
Good luck. Pancreatitis is very serious, but it is manageable with good nutrition and supplements.