Here is what you need to look out for if you are hiring a business strategy consultant:

1. Commercial awareness and industry experience: they need to be able to walk the talk.Understand your specific business model and market dynamics
2. Emotional intelligence and awareness : able to listen and manage people throughout the change process
3. Value before fees: make sure they are willing to deliver value before charging extraordinary fees. This demonstrates a client centric approach.
4. Dedicate time for your case: juniors can be helpful but you need a senior person to devote time for your case. You are purchasing experience.
5. Capacity to execute: deliver what they promise within the agreed time frame. This is what builts trust.