Here's some good advice. I don't know what breed you are running, but I'd sell the breed you are dealing with now and move towards the Katahdin breed. No need for shearing, their wool comes off in big sheets filled with creamy lanolin that can be rendered and used for an emollient or waterproofing of boots, etc. They stay fat on just grass and hay, are naturally parasite resistant if you don't overuse dewormers and trend to a more natural approach to deworming....using chemical dewormers over and over just breeds stronger, more resistant parasites and does nothing to develop your sheep's parasite resistance at all, they are a milky breed and gentle for handling.
If the breed you have is not working and it's always a struggle to keep them healthy and thriving, it's time to change breeds or change methods. If you have small acreage, it's best to go for breeds that are more parasite resistant and stay fat on grass instead of needing grain all the time...this way you can keep them healthy and fat on just what you are growing~grass~and feed them a cheaper feed in the winter months~hay.
If not wanting the wool for spinning, then it's a win/win to get a breed that doesn't need shearing at all. Katahdins still have a very fine textured wool for a hair breed and they shed more completely, in large sheets, than the other hair breeds, so you can still recover their wool for felting, stuffing, insulation, etc.
If the desire is to farm smarter, not harder, then selling what you have that is not working is a smart move. Starting over with a breed and/or method that actually works in your situation is a positive move. Farming is full of reversals, do overs, changes in breeds or methods until one gets the right fit for success...but if you always do what you've always done, you'll always have what you always had. I'd listen to your husband but go one further and sell them all. Then I'd study up on breeds, culling for herd vigor, natural methods to naturally good health for livestock, etc. and make a plan for keeping them healthy instead of making them healthy.