Change management in PMI is the process and methods (tools) to manage the people side of the integration to achieve the declared PMI goals. Therefore, it is important to link the change management to the PMI strategy and the project management in the PMI project
For managing the end-to-end process, Excel, Power Point, and Share Point on their own do not really work. Every project is different and one needs to be aware of the complexity that tools bring with them. So do tools really work?