What is the best approach to management of newly diagnosed intermediate or high risk prostate cancer in a patient with high grade non-muscle invasive bladder cancer?

Perhaps the term "Best Approach" should be eyed with skepticism in the field of genitourinary radiation oncology.

Is there extensive disease in the bladder, focal recurrences, or no visualizable lesions? The maintenance BCG element of the question suggests the patient has minimal measurable disease ...