Instructional Designers vs. Instructional Technologists?

I've recently found myself wondering (again) how much people really know about the instructional design field.

I've been trying to hire a designer and have everyone from talent and performance coaches to graphic artists applying for the position. I've met wonderfully gifted people, but wonder how well instructional designers are able to communicate what we do and how well people can distinguish our talents and skills from some of the other sub-skills (such as gap analyses and assessments and graphic design) that inform our work. I have also run into the talented instructional technologist that applies for the instructional designer job. Why do you think this is the case?