In addition to the layoffs, RIM also announced a series of changes to its executive structure. For the most part, the changes entail giving a number of senior executives – although not co-CEOS Mike Lazaridis and Jim Balsillie – more responsibilities. Chief operating officer (product and sales) Thorsten Heins will oversee all product engineering functions at the company. Chief information officer Robin Bienfait will also take on responsibility for the business enterprise unit. Chief operating officer (operations) Jim Rowan and chief financial officer Brian Bidulka will oversee the cost-cutting program.