German department store chain Karstadt is set to appoint its supervisory board head as chief executive, a person familiar with the process said on Sunday, as it battles to get back to profitability. Stephan Fanderl, 51, a former manager at German supermarket chain Rewe [REGRP.UL], would be the best candidate to bring the struggling company back on track, the source said. He will be Karstadt’s third chief within a year. No-one at Karstadt was immediately available for comment.