Then last year ING Barings suffered big losses in emerging markets and brought in David Robins, a former colleague of Mr Bennett at UBS, to be a "new broom" chief executive.
Mr Bennett says: "I had already made my mind up to leave. I was disenchanted with investment banking - I'd been doing it for far too long. Mr Robins needed someone to make a new start with."
Mr Bennett, who was once a systems analyst with IBM back in the 1960s, is now head of JM's IT headhunting operations.