<strong>Gresham College</strong><br />Ken Costa, the chairman of investment bank Lazard, has been hired as the college&rsquo;s professor of commerce, giving a series of lectures on &ldquo;Reshaping commerce in the post-crisis world&rdquo;.<br /><br />Costa joined Lazard as chairman in 2007 and, prior to that, was vice-chairman of UBS Investment Bank. He is also a member of the advisory council of the London Symphony Orchestra and a trustee of the UK arm of the Nelson Mandela Children&rsquo;s Fund.<br /><strong>BoA Merrill Lynch</strong><br />The bank has hired Sanaz Zaimi as head of fixed income, currencies and commodities sales for the EMEA region, as well as head of debt and equity structured product sales.<br /><br />Zaimi joins early next year from Goldman Sachs, where she was most recently a partner and co-head of structured sales for Europe. <br /><br /><strong>LECG<br /></strong>The finance and economic consultancy has appointed John Biggart, Peter Daniel and Boaz Moselle to its London office.<br /><br />Biggart joins from Navigant Consulting, where he was a director in the dispute practice. Daniel joins from accountancy firm BDO Stoy Hayward, where he was a partner in the forensic accounting group, while Moselle previously worked for the Brattle Group in Brussels as a principal in regulation.