I've worked on the other side of this and it's the end result of any large agency that starts chasing the bigger clients. More and more time, effort, and money

I've worked on the other side of this and it's the end result of any large agency that starts chasing the bigger clients. More and more time, effort, and money is spent on the ideation/thinking/design side to the point everything else just grinds to a halt. For executives on both sides it's great. For anyone who hasn't to _do_ something, it's at best pointless, and at worst poisonous to every other activity. As the author said, hiring a freelancer with specific goals is a much better route.