In this white paper, we present how ITIL has evolved with the changing needs of sourcing. We explain how multisourcing brings its own set of challenges that need the antidote of a Service Integrator, and hence realization of benefits and performance-based service management will be the next focus of ITIL. We outline the basic constructs of setting up the service integrator, a mature sourcing governance and a value chain between business demand and IT supply.