In light of increased pressure from shareholders, Research In Motion is preparing to replace current co-chairmen of the board Mike Lazaridis and Jim Balsillie. The Financial Post on Tuesday reported that RIM will soon shake up its corporate structure, likely removing both company co-founders from their current board seats. The pair would remain co-CEOs and a new single chairman would be appointed in their place. According to the Financial Posts’s unnamed sources, independent director and RIM board memb...