Idea is the first thing created in any business plan. Every organization plants its business plan as its base and builds the company over it. Every other thing can be amended but this idea remains at the core of the company. Thus, every other thing can be outsourced but processes related to this idea is always executed in-house. This includes succession planning, employee development and budgeting.
Outsourcing any activity helps in controlling operation costs, gaining access to world class capabilities, increasing efficiency for time-consuming functions and at top to improve company focus on its core ideas.