I agree that you should tailor your pitch to the company that is hiring, but bullshit like "generalists don't get hired" is one of the reasons I left software development. People who have the fluidity of thinking to be able to grok say Ruby as well as assembly are an asset, not a liability. They can see the forest rather than the trees. There are times when you need a specialist, usually because you need some domain specific expertise, but to penalize generalists is totally insane.