That... actually makes sense - hah!
The rendering began to slow down so I stopped doing anything and let it run. My 3 year mark: https://vgy.me/xgjxkO.png with about 250k/day increase. Most of my branches look like this: https://vgy.me/FAnavY.png with a range of projects: https://vgy.me/j8zcHS.png
Without any experimentation for metagaming, I think hiring senior marketers at a 10:1 ratio with any other position would probably rake in money as most revenue is based on how many projects you can get - while having "just enough talent" that the projects are profitable.
E: Tested my theory and was right. 500k/day but the UI had become too unresponsive to continue hiring. As predicted, was a fun way to spend 20 minutes. :) https://vgy.me/e1pSZJ.png