ething totally different with the rest of my career," he said. "I have no job to go to and no idea what I'll end up doing. I just know I'm 50 and I want to do something different while I'm young and energetic enough to do it. The BT job is not for me. I've spent 27 years in telecoms and I don't want to run another telecoms company."   <P>Mr Grabiner will receive no pay-off but before he leaves will cash in around &#163;3.2m from exercising options on 1.6m shares awarded to him last year. He still has around