A Portfolio of Processes
Many companies have some form of a portfolio management group to manage their projects and their backlog. The projects they govern range from network pulls to new software development. However, most use only one methodology to run these projects. It may be waterfall, Agile, Critical Chain or some other process. This is analogous to having only one knife in the kitchen. Anyone that has cooked more than a few meals realizes that a table knife is insufficient for all your kitchen needs. It purees tomatoes, cuts meat poorly, fails at filleting fish and suffers as a steak knife. There are hundreds of knives, each designed to do some specific job. As with many jobs, some tools are better than others are for certain tasks.