What are the pricing models for a managed service provider?

Our aim is to always create a pricing and payment model that is appropriate to the individual circumstances of our clients, taking into account their overall objectives for acquisition of contingent labor and management of the third-party supply base, as well as the scope of the intended solution, whether that be solely staff augmentation, management of services procurement/SOW, or a combination of both thereby ensuring the resulting MSP solution is fit-for-purpose.