banco santander sa has appointed angel rivera as chief executive of santander spain as the bank seeks to leverage growth and accelerate commercial plans in its key domestic market the spanish lender said thursday that mr rivera who currently heads retail and commercial banking at santander spain will replace antonio simoes starting february mr simoes will stay at the bank as regional head for europe as a member of the groups management committee santanders board of directors also approved the appointment of mahesh aditya as group chief risk and compliance officer a role he will assume in march meanwhile bruce jackson will succeed mr aditya as head of the santander us auto business and ceo of santander consumer usa