GREEN BAY (AP) -- Nobody expected the Spencer Havner experiment to work out quite like this -- not even Havner himself.
   Three months after coaches began letting the backup linebacker take snaps at tight end in training camp, Havner has become a bona fide pass catching threat. He's making the most of his increased playing time in the wake of an injury to tight end Jermichael Finley, catching three touchdowns in the Packers' last two games.
   That ties him with wide receiver Donald Driver for the team lead in touchdown catches this season.
   Not bad for a guy who spent three separate stints on the Packers' practice squad after a standout career as a linebacker at UCLA.
   Significant position switches are rare in the NFL, but the Packers actually have two players who went from defense to offense: fullback Korey Hall played linebacker at Boise State.