Quite generic and old-school framework (comparable to Porters 5 Forces, which were already updated to 6 forces in the early 90s). Embedd your thinking along the way of asking yourself questions "What has to be true in order to sell more?"
... key points to touch upon of course are: what clients expect / need / are willing to pay for, what competitors already offer, and how we fit in (eternal love triangle btw clients, us, and the competition).
The 4P framework are just mere tools, at least in my opinion, potentially to be raised when talking about implementation. You d sell yourself short using that. By the way, there are expanded frameworks on this particularly (6Ps, 8Ps) etc, but this misses the point. Identify what needs to be true, what key questions you need to ask, then back up each question with a framework.
What does the clients need? HOW exactly does our product provide VALUE to them?
HOW important is the product to them? What would they be willing to pay for it? Are there any substitutes?
How would they like to structure the payments? I.e. dop they prefer fixed prices, contracts, spot prices, etc.?
What does the competition offer? Do they fullfil the clients needs?
Do we have what it takes to fullfil the clients' needs?
Then you can back up every Question with specific contents... separately or merged.