(ShareCast News) - Asterios Satrazemis will step down from his role as president of Aggreko's rental solutions division.He will leave the company on 17 December to take up the role of chief executive at BlueLine Rental.Bruce Pool, who has been with the company for 17 years in a variety of roles, will take over from Satrazemis.Aggreko chief executive Chris Weston said Satrazemis has made a considerable contribution to the company over the last eight years."We understand his desire to seek a fresh challenge and on behalf of the board and the group as a whole, I would like to wish him every success in his new role."He also welcomed Pool to the executive team."Bruce has an impressive track record in the business and across the industry, and I am sure that he will continue to build on the success of Asterios and those before him."