Strange Bedfellows: How IPG and Omnicom Should Navigate Active Pitches

At any given time, agency holding companies have multiple pitches of different scale in play--and more often than not, they're pitching against each other. As Omnicom moves to acquire Interpublic Group (IPG), the two are undoubtedly facing off in various ongoing media and creative reviews--in which case, do they precede as enemies or friends? It...