sentences:  He credited much of his inspiration and business approach to Tom Lewis, a principal at the firm at the time.Before becoming the firm’s first CEO from Europe, he was head of BCG’s global Financial Services practice, the Chair of the Practice Groups and a member of the Executive Committee.Since his election by BCG’s partners to the office of CEO, under his leadership, BCG has grown from 4,500 employees to more than 15,000 presently.