More details have emerged of a boardroom reshuffle at Rangers owner Sir David Murray's property-to-call centres empire, following The Herald's disclosure on Wednesday that former Murray Metals chief Ken Cockburn has stepped down.

Also leaving the board of Murray International Holdings (MIH) is fellow non-executive Harvey Rose, an accountant who has been an MIH director for more than 25 years. Rose has decided to leave to focus on his accountancy and advisory practice, MIH said in a statement.

Stepping up to the executive board are Graeme Hill, current chief executive of Murray Metals Group, which has annual turnover of £350m, and David Horne, head of legal and group company secretary.

Hill took charge of Murray Metals in late-2005, after Murray sold Murray International Metals (MIM), his then flagship metals business, to a US private equity group for £112m. That deal saw Cockburn remain managing director of MIM, since renamed Edgen Murray, while retaining involvement with MIH as non-executive chairman of the remaining Murray Metals portfolio.

Cockburn, 54, was one of a close-knit triumvirate which ran MIH with executive chairman Murray, who owns 82% of the metals-to-call centres conglomerate. The others are MIH chief executive Donald Wilson and Ian Tudhope, managing director of Premier Property.

The other MIH board members are finance director Mike McGill; veteran Edinburgh financier Sir Angus Grossart, whose merchant bank Noble Grossart owns a 5% stake; and David Murray Jr.

Sir David Murray commented: "As we continuously strive to sharpen the focus and resource of our business in line with our strategic development plan, I am pleased to welcome Graeme Hill and David Horne to the board of MIH. Both of them are long-serving employees of the group and possess the knowledge and specialist skills to drive forward the business in a period of growth and development."