Still, a company can have all seven in place and underperform, because a partner function is not the parts but the joins between them.
A co-sell motion gets designed while sales compensation pays the rep the same with or without the partner. The go-to-market outruns the data spine and attribution slips. Each one is a working domain failing at its edge.
Seven with weak joins produce less than five wired tightly together.
Here is the part worth remembering. You cannot buy your way out of a missing domains, and you cannot work around one for long. Spend speeds up a working model; it does not build one.
The AI layer sits under all seven for the same reason. It accelerates whatever is already there. It helps when the policy underneath is clear, and it hurts when nobody wrote one.
The seven domains, the joins between them, and how to fix the weakest one are the backbone of my book, Finding Traction in Partnerships — The Operating System for Partnerships That Compound.