Sorrell has a crack at his competitors, but not advertisers. Pretty poor. Digital was always going to be the dominant medium from the off and everyone on all sides needs keeping upto date, but also the fact that it has so many facets will always make it slightly bewildering to many. Advertisers and Agencies just need good managers who respect and treat it like any other media, and people should not go down the route of blame, but just educate over and over.
Anyway, no chance of our Chairman being drawn into Sorrell's line of sight, he runs a team of superheroes when it comes to championing new media. http://www.spaceandtime.eu.com/who-we-are/who-are-we.html