>her main duties now consisted of simply being available between 0900 and 1800, sending the occasional email and completing the odd routine task from home.

This sounds like a perfect opportunity to be paid while searching for a new job. I honestly don't see how employers still see this as a good idea. Please, by all means, stick me at home with nothing to do but collect a paycheck. I'll gladly clock in while filling out applications for a better role.