As someone with a portfolio career, Mark has many fingers in many pies! Enterprise Doctor is his main line of work - advice and support for small businesses - helping mainly solopreneurs and businesses in the 2-10 employee bracket to do better what they do. The one thing they have in common is that they're all expert at what they're expert at, but running a business is a different skill set. Mark helps them improve their skills in areas where they need it most, helping them achieve their own definition of the word "success".