BlackBerry is undergoing a major management shake-up. The struggling smartphone maker announced today that its Chief Operating Officer Kristian Tear and Chief Marketing Officer, Frank Boulben will be leaving the company.

As part of the reshuffle, BlackBerry Chief Financial Officer Brian Bidulka will abe replaced by James Yersh, who has worked at the Canadian firm in a number of executive roles since 2008. BlackBerry said Bidulka would remain as a special adviser for the new CEO until the end of the current financial year.

Roger Marti, who has been a BlackBerry board member since 2007, also announced his resignation today.

These sweeping changes follow the resignation of Thorsten Heins as BlackBerry CEO earlier this month. Despite receiving $1 billion in fresh funding from Fairfax and other financial institutions, the company is struggling to retain any sense of stability. These is a huge shake-up, but one that is perhaps necessary to help BlackBerry rebuild and move forward.

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