Many 401(k) plan sponsors have wisely selected investment professionals to assist in selecting the plan’s investment menu, typically a listing of various mutual funds. Other plan sponsors may allocate this duty to company officers and other key employees. In either case, the resident plan fiduciaries (the company officers and key employees who act on behalf of the sponsor as plan administrator or trustee) have a legal duty to “select and monitor” plan investments and, in the case of sponsors who have hired investment professionals – to monitor not only investment performance but also the performance of the investment professionals.