See...when it comes to dogs, and bringing a new one in, I don't allow the new dog to 'take over' the new house, especially where the previous cats, or other dogs are concerned. The new dog is crated when I can't watch him, and on a lead until I KNOW he can be trusted with my cats, and other dogs; most dogs that I bring in, also need necessary obedience training as well...which, it sounds like yours does too; keeping the dog on a lead gives me more time to work with him closely each day. I learn his 'problem areas' sooner, and thus can resolve them sooner too.
Your dog, being a husky, 'may or may not' want to play; they have a very high prey drive...all those cats have to do is run from him and he probably would chase them.
Instead of simply letting Dakota 'rule' the roost, even while you are home, you need to keep him on a lead, or crated; your cats lived in your home first, and he needs to learn that...they 'dominate' him-feed your cats first, play with them first, etc...this puts them 'higher' in the pack than Dakota, so to speak, not the other way around. Dogs NEED structure and hierarchy...cats, aren't 'pack animals', so they don't require set boundaries like a dog does.
If he is on a lead, your cats will be more comfortable venturing back out into their home; and you will be able to control the dog immediately. When he doesn't obey a stay, you can correct him immediately...not set him up for failure, by allowing the opportunity for him to scare the cats away by getting up from the position you have asked him to stay in.http://www.sspca.org/Dogs/TANSTAAFL.html
Long, but has a lot of good info...http://www.greytinspirations.com/tip...gs-to-cats.asp