Unfortunately you probably want to hold your nose as you read about the Packers' quarterbacks. "Aaron Rodgers had perhaps his worst practice of the offseason...As shaky as Rodgers was, Brian Brohm was even worse. He threw three interceptions..."
Rodgers played better in the morning, but Brohm looked awful all day.
In the end, one practice in June doesn't matter. Mike McCarthy has talked glowingly about Brohm this offseason. It probably doesn't help anyone look good when the coaches are trying all sorts of different players at different positions, and the familiarity with your teammates isn't there. Just wait to see how they do in the first preseason games.