Fatigue...an issue for cockpit and CC. Realistically, the only way cockpit crew can assure CC proper rest is to insist upon proper layover facilities and time in bed enroute. Before starting a pairing, the Captain must assume the company, and CC Boss (IFS), has control, and will insist upon a properly rested crew. How can it be otherwise? Be realistic. CC must deal directly with the company, and the CC Supervisors, and their managers, before first leg. After that, at enroute facilities, the Captain can, if he/she is competent, maintain a minimum of rest for cockpit and CC. Sam