Destructive Chewing and Crating
Scolding won't work on the chewing, but redirecting his chewing into appropriate items will work, when combined with supervision and him having time to grow up. Right now his teeth are screaming at him. They come in loose and have to be set into the jaw bone by chewing, so the chewing is a genuine need. It can also bestow lifelong benefits in dental health, if you get him into the habit of chewing good toys now. This is your best chance to get that chewing directed into the right items, during this special stage of his life.
Don't let him have access to things he tends to chew that are inappropriate, when you are not with him to supervise. Find some "dog proof" (for him--every dog is different as to what they'll chew!) area for him to hang out in when he's unsupervised. Some people use a room, but there are dogs who will chew the room apart! It helps to have a doggy door--or two, stacked, for sufficient height that he won't jump over--rather than a solid closed door. When the dog can see out, destruction to the door seems to be less common.
The crate is what most people use for the alone time, but it's not the only way. The bottom line is that it be safe for the dog and nothing there for him to tear up. Remember that you must not come in and punish the dog for destructive behavior, because that will produce separation anxiety, a really devastating problem. It will also make a dog fearful and distrustful of people like the one doing the punishment--something you definitely don't want with a giant breed.
When you see the dog chewing something inappropriate, have a spray bottle of a bittering agent such as Bitter Apple or similar products within your easy reach--put them around the house if necessary! Get up, say "Leave It" in a calm voice and spray THE ITEM with Bitter Apple. Don't touch the dog, don't spray the dog, don't yell at the dog--don't even give the dog a dirty look! Just make the item taste bad. Bitter Apple is not like some sort of force field that will protect an item from chewing. To do that, you would have to spray the item about 4 times a day, because it evaporates quickly. But Bitter Apple is awesome for training.
INSTANTLY after you say "Leave It" (calmly!) and spray the item, get a toy your dog likes and tease the dog with the toy just enough that the dog wants it. Make sure your husband understands, this is not to be a big rousing game: the objective is to quickly get the dog chewing that toy. You are switching the chewing from an inappropriate item to an appropriate one. You're going to do this over and over and over, and as your dog matures and you set this habit, you will have a dog who seeks out his own toys to fulfill his chewing needs.
Look at the textures of things your dog chews, and provide toys of similar textures--those are the things he's feeling his teeth need. No toys are safe for all dogs, so monitor, monitor, monitor. I like to provide three textures, usually solid rubber toys, hard Nylabones of the largest size that dog will chew, and large rope toys. If you have just one dog, you can put treats into a Kong or other toy built to hold food. If you have multiple dogs, do not leave them together with treat-filled toys, because they might well start fighting over them. The same is true of rawhide and other edible chews.
The crate or other confinement area doesn't teach the dog anything--you do the teaching. The confinement area is only to keep him from getting hurt or developing/strengthening bad habits when you are not supervising. So if you can do this without a crate, that is fine. I've done it both ways with different dogs.