I am familiar with Dr. Wecht...he's a pompous ass who loves to get his name and his face all over the media. In fact, I think I just saw him on CNN or one of the other media outlets a few days ago speculating about what kind of autopsy would be performed on Mrs. Schiavo. I don't know the Pinnellas County ME, but it could be that he knows Dr. Wecht, or knows of his reputation for grandstanding, and he is concerned that the doctor's presence would just add to the circus. And frankly on that point, I wouldn't blame him for barring Dr. Wecht from the autopsy, if that is what happened.
Pinellas County ME webpage:
http://www.co.pinellas.fl.us/forensics/default.html
Staff:
Jon R. Thogmartin, M.D., District Chief Medical Examiner
Noel Palma, M.D., Deputy Chief Medical Examiner
Susan Ignacio, M.D., Associate Medical Examiner
Chris Wilson, M.D., Associate Medical Examiner
Daniel Schultz, M.D., Associate Medical Examiner
William A. Pellan, Director of Investigations
Reta Newman, M.A., Director of PCFL