When ConAgra Foods bought ChefBoyardee, why did they destroy the original taste and discontinue great products?

In my eyes, ConAgra is a company that destoys brands when they purchase them. I have loved Chey Boyardee since I was a child and have noticed a huge change when ConAgra purchased Chef Boyardee from International Home Foods in the year 2000. First of all they discontinued many great products when they bought the brand. They also changed the formula and ingredients around. Why are they still calling it Chef Boyardee then? I remember the Smurf Pasta with Meat, it tasted totally different than the new ChefBoyardee. What is going on? Is ConAgra using cheaper ingredients or something? At least International Home Foods stuck with a good recipe when they bought the brand from the other company who owned ChefBoyardee. ChefBoyardee was bought out by 3 companies after the original owner ran it. I think ConAgra is a giant that destroys brands and totally uses cheap ingredients. They should not buy other companies, they destroy their brands.