LET'S FACE IT. No one studies law, accounting, marketing, engineering or another field because of a burning desire to become a salesperson. We choose these fields because we want to be lawyers, accountants, marketers, engineers and so on. Unfortunately, business has changed. As professionals we are expected to be experts in our field. We're also expected - and in some cases required - to sell. If we want to move up the corporate ladder, there's a point where we must take on a client-facing role and along with that comes business development responsibility.