Sony Ericsson announced today that Najmi Jarwala has resigned from his position as President of Sony Ericsson USA and Head of Region North America (US and Canada). Mr. Jarwala will be leaving his position at the end of March in order to “pursue other career opportunities”. While SE seeks out a replacement, the dual role will be filled by Anders Runevad, currently the Executive Vice President of Sony Ericsson and Head of Global Sales & Marketing. With Sony Ericsson seemingly sinking faster than a lead weight, we can’t blame Mr. Jarwala for jumping ship while he can — though we would imagine he didn’t make the decision to leave entirely by himself.