“right stuff” thinking lists skills that are correlated with success. It is, using the description of theory discussed earlier, looking to see whether job candidates have wings and feathers. McCall’s schools of experience model asks whether they have actually flown, and if so, in what circumstances. This model helps identify whether, in an earlier assignment, someone has actually wrestled with a problem similar to the one he will need to wrestle with now. In terms of the language of the capabilities from earlier, it is a search for process capabilities.