This works poorly because the philosopher doesn't understand the field. A computer scientist is better qualified to talk about the ethics of Ladar Levison not cooperating with the FBI[1] than an ethicist. A chemist is more qualified to talk about the scientific method than an epistemologist. Specializations have eroded the area of expertise of philosophy to the point that philosophy is rarely relevant.
There's just no case I can think of where talking to a philosopher is likely to inform my decision-making process more than talking to an expert in the actual subject.