Partners not Replacements
Generally, the service consumption, complement the customer operations rather than replacing internal departments as recent researchers indicates very few of the customer companies get rid of internal staffs because of joining up a service provider. Instead, notably in larger companies, adding external services to the mix frees up existing valuable resources to focus on more strategic engagements, like a cloud initiative or a custom app development, in a win-win situation. Cost savings, the previously seen as the primary benefit of Service Providers, now are considered the base benefit and customers are looking for additional benefits like efficiency, continuous improvement, reliable cascading of business objectives and even security.
Bimodal is the practice of managing two separate but coherent styles of work: one focused on predictability and repetitive (standard) work tasks; the other on exploration, creativity, and innovation.