In some cases, especially if he's popular, you may find a consultant's too busy. If they're the one you want, see if you can wait. Don't get mad if the consultant says she can't take your job right now because of an earlier commitment. This is what you'll want her to say to other clients when she's working for you. 5. The Un-Answering Machine.
Unresponsive consultants are poison.
Like any vendor, prompt replies at the onset are a bellwether of what's ahead. If your consultant has better things to do than return your calls, you should question his conviction and dedication to your cause.