I'd prefer if they'd just retire the numbers outright, but the NFL typically frowns on official number retirements. As it is, the Bills have publicly stated that 34, 78 and 32 are no longer issued "out of respect" for Thurman, Bruce and OJ. By continuing to issue 83 it subtly implies a lack of respect for Andre Reed, regardless of whether or not it's true--- I don't think the Bills organization has any ill will or disrespect for him, fwiw, but it sends that message and Reed has commented on it from time to time.