One of the biggest misconceptions plan sponsors have is that their 401(k) plan runs itself. Many employers believe that once they hire a recordkeeper and a TPA, the heavy lifting is done and the plan essentially goes on autopilot. Unfortunately, ERISA doesn’t work that way. A retirement plan requires active oversight, and the plan sponsor remains responsible no matter how many service providers are involved. Hiring good providers is important, but providers only work with the information they are given. If payroll data is wrong, eligibility dates are missed, or ownership information changes without being communicated, the plan will operate incorrectly. Service providers don’t sit inside your business watching your day-to-day operations. They rely on you. Fiduciary responsibility cannot be delegated away completely. Even when a sponsor hires a 3(21) or 3(38) investment advisor, the sponsor still has the duty to monitor those providers. That means reviewing fees, understanding services, and making sure the plan is operating according to its terms. Too many sponsors only think about their plan once a year when the census is due or the Form 5500 needs to be signed. A retirement plan deserves more attention than that. Regular review of eligibility, contributions, notices, and plan operations can prevent expensive corrections later. The truth is simple: a 401(k) plan that is left alone will eventually develop problems. The sponsors who avoid trouble are the ones who stay involved and ask questions. A well-run 401(k) plan is never on autopilot. It requires attention, oversight, and a sponsor who understands that responsibility ultimately rests with them.