Who fills out Twins rotation?

After all the free agent signings that the Minnesota Twins have done this offseason to try and transform their starting rotation, the current rundown of the team's top four pitchers would appear to be Ricky Nolasco, Phil Hughes, Kevin Correia and Mike Pelfrey. That still leaves room for one more arm to join the 2014 party, but that invite might not be going to Matt Garza.