Like personality psychology, the discipline of clinical psychotherapy has traditionally taught its methods in a theory-by-theory approach. Many psychotherapists are dissatisified with this approach, however.
The Society for the Exploration of Psychotherapy Integration (SEPI) is "an interdisciplinary organization of professionals interested in approaches to psychotherapy that are not limited by a single orientation."
This society is devoted to developing new therapeutic approaches and techniques that integrate across therapies.
The organization does not (to my knowledge) recommend a single framework for psychotherapy. For that reason, here I am providing a link to their web site, click here. On the web site are a number of articles related to this important area of integration.