Okay, let’s tackle this. So Mark Collison has a broad skill set that includes strategy, change management, business development, and finance. He has experience in start-ups and agile project management, which are in demand. Location is Marblehead, MA, which is a affluent suburb of Boston. According to national averages, executives with his skill set and experience can charge $125–$200 per hour. Considering his expertise in finance and business strategy, maybe around $175. But since he’s not in a major city like New York or San Francisco, his rate might be slightly lower. So I’ll estimate around $150.