Agency Transformation: An Interview with Mark Penn, Chairman and CEO, MDC Partners

Slow to awaken to market disruption and too reliant on ad spending, the global agency holding companies have seen their valuations plummet in recent years. To reverse their fortunes, they need to transform their service model. MDC is leading the way, aided by an infusion of capital from the new CEO Mark Penn, who is set to turn his collection of "partner agencies" into a "modern marketing company of choice".