According to their official team website, the Packers have signed free agent TE Raymond Webber. Webber, a former college star who, despite being in the league for 2 years now has never played in a regular season game, has never really done anything notable in the NFL, but, in my opinion, could still be good. I mean, I know nothing about him, so I'm not gonna give up on him already just because he has no legitimate experience.
Anyway, Webber attended training camp with the Buccaneers in 2011, the Jets in 2012, and a CFL team last year, so yea, he obviously knows how to play football. He may not be particularly great at it, but he's apparently good enough to make the Packers like him.