Credit-crunched Myerson says decree was not absolute

I see that Ingrid Myerson - the former wife of Brian, the founder of fund manager Principle Capital - took £9.5m in cash from their divorce settlement last year, while her ex husband took PC paper. The shares have since slumped by 90% and Brian is trying to claw some of his cash back.
Three thoughts occur:
1. In a rare lucid moment, I did warn that the financial crisis would provoke City-types to start retrospectively renegotiating divorce deals (but not bonus payments).
2. Would Brian Myerson have increased his missus's pay-out had the shares gone up?
3. Why doesn't embattled Principle give Mrs Myerson a job?