Hi Wisdom,
I've done some reading about object relations and my T does use some of the principles, especially since in many ways Winnicot and Klein were forerunners of a lot of attachment theory. My T is very well read about attachment and applies the principles clinically.
But that's as far as it goes. He's CBT trained but his style if very eclectic. He's been working for over 30 years and has told me that he pretty much relies on his "gut" based on all that experience. He also reads very widely (the stack of books on his desk and table sometimes feel like being at a buffet!) and brings anything he finds usesful in.
So if there's anything specfic you wanted to discuss I might have something pertinent to bring to the discussion, but I might not.
AG