Grizzly is basically the complete opposite of Corgi, to the point that I wonder how the hell the two even became friends in the first place. He can be pretty bossy, and often gets into verbal arguments with his pack members over what he thinks should be done "correctly"
Despite his attitude, Grizzly truly cares for his packmates (even the ones he really doesn't like) and wants to see them succeed and survive at the very least. It's difficult for him to handle change, especially having to change himself for the better.