Salary cap has stated before that the increased revenues has made free agency almost none existent.  Teams are only going to release players that or either flawed or asking for an inflated amount of money. 

The true state of the salary cap will come in about 2 years when all the money is used up by the players.  Then teams like the Newengalnd Patriots and the Pittsburgh Steelers and the Philadelphia Eagles will shine through.  Parody is only for the teams unwise with their money.