Trumaine Monte Johnson's durability made him a risk and that is why I would have had trepidation signing him long term, plus Johnson had some meltdowns as well. Gregg Williams will re-energize Johnson and he'll play better next season IMO, but I never thought he was a true shut down corner.
Janoris Jermain Jenkins is a shut down corner and I would have extended him. Rams thought they had things in place, but Jenkins fired his agent and for him, that was a wise move. Overall I'm starting to believe you should always draft a young CB every year in order to keep things balanced. I miss Jenkins, Johnson not so much.