Not all employees of service centers are ``matrixed'' to product lines. A ``matrixed'' employee is one who conceptually joins the product group, usually to the extent of sitting in their office space, while working with the product team. Sales is again an example of a service organization wherein the employees are not matrixed.
Problems with service centers that do not matrix employees are conceptually problems with the service center as a whole, and should be addressed to the FM.