Brazilian telco Oi has announced the resignation of its CEO Bayard Gontijo less than a month after commencing talks with bondholders about restructuring a reported US$14.3bn worth of debt. Board member Robin Bienenstock, a former telecoms analyst with Bernstein, has also resigned. Brazilian telco Oi (BVMF:OIBR4) has announced the resignation of its CEO Bayard Gontijo less than […]