Critically discuss how the strategy of Barclays has been evolved over the last 20 years and how and why its performance measures have been changed accordingly.

Emphasis should be on

-identification of major changes to the strategy of Barclays over the last 20 years.

- Discussion of which environmental factors have contributed to those changes.

- Identification of changes in performance measure over last 20 years in response to the changes in the strategy of Barclays

- Discussion of why its performance measures have been changed in response to the changes in the strategy of Barclays