The split between the obligation for service and management, on the one hand, and financing and expansion planning, on the other, is a tricky one. There is a risk that the management contractor does not enjoy the autonomy or the authority (over the labor force, for instance) required to achieve deep and lasting change. If the operator is paid a portion of profits or given an incentive payment, safeguards are required to prevent inflation of reported achievements or deficient maintenance of the system to increase profits.