In general: no
For single games: yes
The thing is this. I've never been one for hierarchy in aspects to the entire production label because things will ALWAYS get out of hand. That is why I founded and ran 4-8Productions alone for most of its existence, and added only MADMike to be my second hand man and nobody else.
However, I loved the hierarchy we had in CoD4, and I would love to give it another go. The only issue is, what game? Nobody plays the same damn game anymore.
My only idea is MW3, if it's good, and we all play, we could put this idea into motion then.