Okay, let’s tackle this. So Christian Hayes has a broad skill set that includes marketing strategy, sales, and management. He's based in Boston, which is a hub for marketing and business services. Looking at the job market, marketing professionals with his level of experience can earn around $100-$150 per hour. However, considering his expertise in strategic planning and partnership development, I'll estimate his rate to be on the higher side of that range. Maybe around $125 per hour, which is in line with what marketing directors or managers with similar experience can command.