Publicis' acquisition of Kekst and Co. took the PR industry by surprise, if I'm to extrapolate the recent conversations I've had with senior PR leaders. It shouldn't have.

That is not to say that anyone should have known that Kekst was up for sale, though there is always speculation when an eponymous firm's founder approaches his or her fourth decade of running the agency. But the reasoning behind the acquisition both crystallizes a movement underway in the PR industry and ...