well i woudln't feed authority. Their dry food is not a very good quality. There are MANY fillers and only one protien source although there is probably more filler than protein in this food. It also has beet pulp and corn gluten meal which aren't good.
However, yes he can have wet food for supper. He might start deciding he likes wet better and not want to eat his dry food tho.. which is fine.. he can eat all wet.. you will just need to brush his teeth daily.. which is a good thing to do anyways