There is a reason they hire the real pro's to run the team. Most people faced with those tasks would give in to the outside pressure instead of stick to their strategy. Ask teams like Cleveland how that approach works out (speaking to their "home run everytime" strategies of old. IMHO you cannot accurately judge a player's value based on being injured. Players of all caliber get injured, its part of the game. Perriman will be a difference maker when he's able to return, which is to say he will be a contributor. Using the logic of your comment would mean cutting Pitta, J Smith, Suggs, Dumervil, etc just because they are injured does not mean they are wasting a roster spot. After last season I think it is very fair to say that the Ravens have figured out how to manage the injuries rather well and still be competitive no matter who is out.
Haters gunna hate. Watch us cut him and go to the bengals and destroy us once he's healthy. Then Ozzie will get blasted by the same fans for not sticking it out just a little longer.