Finally, the refinement of theory is another source of
contention. The idea is that the academician should
contribute something highly original to the current
knowledge base. It can be useful to always have in mind that
a single theory seldom is a useful guide to every aspect of
practice with a given client. Even the highly researched
therapies, such as cognitive-behavioral therapy, are very
often delivered with certain elements of the theory included
while others are not.