I think the mistake made by several department stores was going down the franchise route. Each brand had a small space with a minimal selection of styles in a limited size range - and of course the only brands in store were those with franchises. The problem is, also, that people complain about the poor quality of modern clothes, but when a shop does have good quality clothing, complains again that it is too expensive.
I used to shop in East (cries of: it was so expensive) but I have 2 dresses from East, one summer, one winter, both of which I love. I have had both about 5 years and they will probably last another 5. Think of the money I have saved. What is more they always look fresh and up to date.
I now find M&Co a good source of good quality clothing, I have several pairs of trousers form them that I have had for at least three years and are still going strong, also Monsoon, but I have taken to haunting Charity shops for good quality clothes that do not look washed out three months after you have bought them.