Not all IT vendor relationships are destined to progress to the level of “strategic partnership.” Some, in fact, may need to regress.
SOURCE: A maturity model for vendor relationships: you can’t marry all of them
The top 10 IT outsourcing service providers of the year | CIO
Top 10 IT service providers of the year Accenture TCS Cognizant Wipro HCL Capgemini IBM Infosys