Other than the years with Zimmer leading the Bengals D, the Bengals D has been mediocre or much worse every single season with Mediocre Marvin in charge.
So at this point it seems like his reputation for good defense was more the product of having the right people around him in Baltimore and for a season in Washington DC.
Zimmer produced great results as Bengals DC and he's produced great results as Minny HC. That's the mark of a defensive genius.
Mike Brown has already abused their hearts and raided their wallets. He has been a one-man plague of locusts -- Gregg Doyel