Miami was crazy to pay him that much.The odds of him maintaining a high level of play throughout the contract was low. Yes, he is worth a shot, but I imagine he will be looking for a wide 9 scheme that he had so much success with Detroit. He could just want the most money again.
Dominant D-lineman no doubt, but also a warning about overvaluing a position. They would have been better off taking the money he was paid and spreading it out over several positions on DEF or OFF. Dominant as he was, he wasn't worth crippling their ability to make other moves. The ROI is important.