Quiet as in not talking? Because they've made plenty of moves in the last month:
03/09/2015Signed K
Jordan Gay to contract extension.
03/09/2015Re-signed DE
Jerry Hughes
03/05/2015Exercised exclusive rights by tendering offers to WR
Justin Brown, DT
Corbin Bryant and WR
Chris Hogan.
03/04/2015Agreed to terms with the Vikings to acquire QB
Matt Cassel and an undisclosed draft pick in exchange for undisclosed draft picks.
02/17/2015Released LB Keith Rivers.
02/09/2015Signed G
Richie Incognito.
And that doesn't include trading for McCoy and signing him to an extension.