What does it mean when some people say that the green bay packers did brett favre dirty?

Brett Favre's days were numbered as soon as Aaron Rodgers was drafted. Ted Thompson wanted to get Rodgers in before his contract ran out. Favre was Ron Wolfs QB. Thompson wanted his QB in. It's that simple. Favre new it when Rodgers was drafted. Brett had a 7 year contract while Aaron's was for 5. You do the math. Someone had to go. Thompson wasn't going to let his first round draft pick go. That crap about a QB battle in training camp. That was a contest Favre couldn't win, no matter how good he played. I am a Packer fan and I like Aaron Rodgers. He is already one of the top QB's in the league. But I know Favre got kicked to the curb and I hope he does well, no matter who he plays for.