Okay, let’s tackle this. So David Springstun has a broad range of skills, including strategic planning, business development, and sales management. These are all high-demand skills in the corporate world. However, his experience is not as deep as some other professionals in these areas. He also lacks a specific industry focus, which might put him at a slight disadvantage in terms of earning potential. Considering his skills, experience, and location (Buena Park, California), I would estimate his hourly rate to be around $125. This is slightly below the national average for sales managers and business development professionals, but it's still a competitive rate given his broad skillset.