Test the method on one existing client.
For £99, I build a light outside-in model of one B2B client, identify a material change and return one or two intervention hypotheses worth testing.
A short Client Situation Note.
A working business and operating snapshot, the material evidence I found, one or two intervention hypotheses and the questions that would confirm or reject them.
I state where published evidence ends and inference begins. If I do not find a justified intervention hypothesis, I say so.
Light by design.
The £99 check is for testing whether this type of outside-in analysis is useful to your account work. It does not attempt to exhaustively model the client or produce a full account strategy.
If the account warrants deeper work, the Client Situation Review expands the analysis.