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Before it landed Microsoft's $300 million account and hired Jerry Seinfeld as a spokesperson, the admen of agency Crispin Porter & Bogusky met with Fast Company's Danielle Sacks in April 2007. That's when Alex Bogusky explained exactly what kind of computers it uses, and why:

Crispin sort of exists because of the revolution in desktop publishing that the Mac brought about. You could be a small shop and compete against Madison Avenue for the first time because all the tools were in your computer.

Sacks then asked if CP&B plans to force employees off their Macs now that it's Microsoft's agency. Rob Reilly, Bogusky's executive on the Microsoft account, answered: "It's not a matter of forcing people. It's getting them to want to use it. If you can't, you're not going to do great advertising."