I do believe several posts have been made about this, but not specifically or directly. Although I do love the fact the AI are utilising R&D a lot faster than in previous games, I feel the rate of change is too much for the AI compared to the player.
For example, I have seen many images of the R&D progress where Williams or Alfa Romeo have just shot up like a rocket in about 6 or 7 weekends. Obviously, given you can probably earn about 1200 resource points a weekend, it becomes very difficult with failures in development, as well as this monumental increase to keep up, and I fear I'm going to fall miles behind in terms of pace and sit alone at the back of the grid with my teammate about 2 seconds off the pace.
It would be great if others could share their thoughts and experiences on this, and perhaps get this pushed forward a bit.