To be fair I might have overgeneralized on my statement, I was coming from the perspective of an agency like I the one I used to work for at around 100 people.
At that size, there is a tricky balance on the size of clients you service.
Personally, I’m a big fan of smaller agencies of max 20–30 people, larger than that its harder to pull-off an its a different beast.
I would love to chat more in detail and compare notes about how you are doing things, vs what I experienced at Demac.