In my previous company the Non-Destructive Testing (X-Ray and Fluorescent Penetrant) Level 2 personnel reported to Manufacturing, the Level 3 personnel reported to Quality. "What should I work on?" was a manufacturing decision, "This is borderline, what should I do?" went to the Level 3 and therefore to quality. I never felt that this caused a conflict. But that can be a function of the culture of the company.