The Brewers recently haven't been in the mix with FA until later in the off season. The last big sign the Brewers had was Grandal and that wasn't until Mid January and the other big sign for the Brewers being Cain that didn't happen until the end of January.
Expecting the Brewers to sign someone early is foolish at best. The Brewers front office seems to have a plan and that is to wait it out and wait for a player to drop to them at their price range or what they are comfortable in offering them.
I believe the reliever market is coming up really good for the Brewers and there are still some decent options left on the board in Britton, Smith, Chapman, and others. Britton is probably the best out of the bunch and he is only looking for a one year deal. I could see the Brewers adding Britton, Rosenthal and one of Longoria, Harrison, Anderson or Profar. I don't believe any of these players will get more than a one year contract.