With Barclays' announcement earlier this week that it intends to exit its Africa business, speculation is already rife that a familiar face could step in where Barclays is stepping out. 

Former Barclays CEO Bob Diamond has spent his time since leaving the bank building out Atlas Mara, a financial services holding company with a series of businesses in Sub-Saharan Africa. Given his familiarity with Barclays' Africa business, the move could make sense, and would be a giant leap for Atlas Mara in realising its ambitions of being a serious regional player. 

Atlas Mara have declined to comment, but the question remains: will Diamond acquire a jewel in Barclays' crown?