One of the responsibilities of fiduciaries of 401(k) plans — typically committee members — is to select and monitor the plan's service providers, such as the plan adviser and recordkeeper. When making those decisions, fiduciaries are required under ERISA to act prudently and loyally. From time to time, though, fiduciaries may consider changing recordkeepers, perhaps because of dissatisfaction with the incumbent recordkeeper or simply because of a recommendation of another recordkeeper.