BlackBerry's operations and marketing chiefs out - new finance boss in

BlackBerry's reorganisation marches on.

Chief operating officer, Kristian Tear, and chief marketing officer, Frank Boulben, are out.

They've simultaneously announced their new chief financial officer hire. James Yersh will replace Brian Bidulka. Yersh has been with the company since 2008 and has more than 15 years of experience in the industry.

John Chen, executive chair and CEO, thanked "Kristian and Frank for their efforts" on behalf of the company. He welcomed the opportunity to be "working more directly with the talented teams of engineers, and the sales and marketing teams" of BlackBerry.