Two senior directors at insurance group Eastgate Assistance, Max Carruthers and Alan Quilter, suddenly resigned this week to make way for two City heavyweights.

Andrew Brown, the former chief joint chief executive of NatWest's investment house Gartmore, and Richard Milne, the former financial director of Barclays' investment house subsidiary Hawkpoint, both join the Eastgate board.

Brown is the new chief financial officer, and Milne is the chief operating officer at Eastgate.

Group chief executive Ken Randall said both Carruthers, who was the former chief executive of the general side, and Quilter, the former financial director, had left on amicable terms. "There was no bust-up between us," he says, and he added: "The move follows a rights issue which raised £10m from our shareholders to invest in internet ventures with Cap Gemini."

Both Brown and Milne are shareholders in Eastgate, which has been rumoured to be planning a stock market floatation in the future.

Eastgate has now split its two main operations into separate divisions.

Helen Withers becomes managing director of legal and medical expenses, while Bill Paton becomes managing director of business processes and outsourcing.

Carruthers, who spent more than 20 years at Eastgate, will continue to act as a consultant for the company for the foreseeable future.