Vikings linebacker Chad Greenway is impressed with the credentials and leadership of Brett Favre, but is questioning the quarterback's intentions. "He's retired a couple of times, so you wonder where his loyalties lie," Greenway said Monday, referring to the fact that Favre retired from the Packers, but then un-retired to join the Jets last summer. "As good as something may sound, we have a great team to play with right now, and there is no sense in looking outside of what we have," Greenway added.