Troubled mobile maker Motorola has said goodbye to Richard Nottenburg, its chief strategy and technology officer.
Nottenburg had been with Motorola since 2004, first as an advisor then as chief strategy officer.
The company has lost a string of senior figures of late. Motorola lost its mobile head Stu Read and its marketing boss Casey Keller in March. It has struggled to keep staff since the board ousted chief executive Ed Zander in November 2007. Dozens of less senior jobs have also been cut.
The company has spent a year fighting activist investor Carl Icahn.
Earlier this year it agreed to Icahn's main demands - that he get a seat on the board and that the company sell off its handset division. Motorola shares have fallen 45 per cent in the last year. Icahn is now concentrating on forcing Yahoo! into accepting Microsoft's takeover offer. ®