Yeah, it's also interesting that she is effectively taking a demotion, from CEO to "senior vp". Burberry is a prestigious brand, and I'm very curious what factors led to her decision.
I'd take a guess that if Apple Retail was a separate company from Apple, it'd still be worth more than the whole of Burberry.
As seen before, most people don't get to sit on the Head of Retail chair for a long time and can be removed by Tim Cook at any time. Angela could have stayed as CEO for at least one more decade.
I assume that they are compensating her heavily for his move.