Replacing Coordinators Annually

Why is it that every coordinator that I hire gets a 1 year contract? Even when it shows that they sign a multi year deal when they sign with my school? This is frustrating. To make it worse, I can never find my existing coordinators when I go to sign during bowl season. But they end up signing with other schools saying that they were "fired." Please fix this and give the option to give current coordinators extensions.