When building a User Experience team, the same question comes up: How do you know what kind of UX professional to hire?
Specialists are professionals who have the time, experience, and projects to allow them to go deep into a discipline, such as information architecture or visual design.
Because they can concentrate on the one discipline, they become very knowledgeable and experienced at solving the problems that crop up. Having a specialist on board is often very valuable, since they’ll know how to tackle the many subtleties that can make or break a project.