Cohen and Young outline a new model, multisourcing, which uses internal and external providers to blend business and IT services. The book is meant for executives and senior managers wanting to solve the problems of outsourcing. Through case studies, they describe sourcing strategy, governance, selecting service providers and creating contracts, and the functions of management and measurement. Only services outsourcing, and not manufacturing outsourcing, is discussed. Cohen works in strategic sourcing and Young works in IT services and sourcing. Annotation ©2006 Book News, Inc., Portland, OR (booknews.com)