A man could go crazy with metaphors when trying to describe the historical relationship between Microsoft and Apple. But let's stay with the present. News that Microsoft has hired Crispin Porter & Bogusky (CP&B) to hip itself out, is much like a scrawny nerd who, after two years of constant bullying, returns from summer camp with muscles and a determined anger.

While many marketers are loath to bet against CP&B, I must say that just because that nerd has muscles, doesn't ...