customization, process definition, support, control. While I don't like Clearcase/clearquest, large companies like them because it allows them to define their

customization, process definition, support, control. While I don't like Clearcase/clearquest, large companies like them because it allows them to define their own rigid ideas of control within their company. Large companies have a team of people who's job it is to create, manage, and train to that process. Tools like clearcase allow them to create these custom workflows and processes within the company in such a way that they must be follow. this allow for some pretty complex controls on who can do what, what signoffs must happen for certain code commits, and such. Git and Github do not offer that fine-grain control that managers of large organizations like. So until you see that type of functionality, don't expect to see Lockheed Martin deploy Github throughout their company.