The basis on which the strategy is built
What assumptions are they making (and what happens if those assumptions are false)?
What’s the pricing structure – how does it align with the retainer fee to deliver the strategy
How often is the strategy reviewed?
What’s the process for reviewing the strategy and fine-tuning it?
What process documents do they use? (this is different to reporting documents)
How can you measure success or failure of the strategy? How can you measure progress?