RBR Capital Advisors has fleshed out a plan for Credit Suisse to split into three parts – a proposal that includes the return of a famous investment banking brand.

News emerged early last week that RBR, led by activist Rudolf Bohli, was preparing to outline a framework for unlocking value at the Swiss banking group, which is in the midst of a three-year turnaround plan under its chief executive Tidjane Thiam.