The key question for enterprises looking to outsource their procurement operations is whether to partner with a specialist provider or a multi-tower provider. While a specialist provider with deep procurement expertise may be the best choice, the next logical question is which engagement model is right for procurement outsourcing - a dedicated team or shared resources? The pros and cons of both models are weighed in this paper to help determine the right approach for your enterprise. When designing an outsourcing delivery model, several aspects must be considered, including program duration, scope of services, IT infrastructure, and resource requirements. The resource model is one of the key aspects that a solution architect must focus on, with two aspects to analyze: resource delivery location (on-site or offshore solutions) and resource dedication.