Widely seen as a potential Goldman Sachs CEO, Lemkau now plans to join New York-based RIA MSD Partners, which was formed by the principals of computer entrepreneur Michael Dell’s family office (MSD Capital) in 2009 to let select investors use its strategies. Together, MSD Partners and MSD Capital manage some $15 billion in assets. MSD Partners’ current investment strategies are focused on credit, private equity, real estate and public equities. Lemkau will become CEO and a partner of the RIA in February.