The lead director of Goldman Sachs Group’s board of directors has retired to receive treatment for recently-diagnosed multiple myeloma.

The lead director of Goldman Sachs Group’s board of directors has retired to receive treatment for recently-diagnosed multiple myeloma.

James Schiro, who also serves as chair of the board’s corporate governance, nominating and public responsibilities committee, stepped down at the end of last week.

“His deep experience across financial services, nuanced judgment and the seriousness with which he carried out his responsibilities, particularly as lead director, will leave an indelible mark on our board”, Lloyd Blankfein, chairman and chief executive of Goldman Sachs Group said in a statement.

The firm announced in a statement that his replacement is Adebayo Ogunlesi, who will take on both of Schiro’s roles.

Outside of the firm, Ogunlesi is the managing partner and chairman of Global Infrastructure Partners, a private equity firm that invests worldwide in infrastructure assets in the energy, transport and water and water industry sectors.

Prior to this, he worked in a variety of roles at Credit Suisse, notably as executive vice chairman and chief client officer in the two years prior to his departure in 2006.

In addition to Ogunlesi’s appointment, M. Michele Burns has been named as chair of the risk committee at the Goldman Sachs Group, while Peter Oppenheimer becomes chair of the audit committee.

Burns served as chairman and chief executive of the consulting firm Mercer between 2006 to 2011, and was most recently CEO of the Retirement Policy Center, sponsored by March & McLennan Companies.

Oppenheimer has recently left his post of senior vice president at technology giant Apple, where he also previously served as chief financial officer for 10 years.