I think of myself as part coach part therapist part trainer all rolled into one.
A personal trainer is a person who is able to see the big picture, is able to adapt, encourage, challenge, maintain professionalism at all times, have a safe workout provided each time and respect the clients time and money. A personal trainer is providing a service which needs to be implementd properly.
A personal trainer should be educated and certified and constantly open to the power of new concepts, ideas, methods and techniques. A personal trainer must be able to execute a well rounded workout designed specifically for that one unique client.