Or some other teams
that Cook was possibly trying to contact earlier this year?
Like I said...he wants it his way...but its not just "he wants to play".
Have you ever bothered to put yourself in Brett's shoes?
Do you want to finish your career with some crappy team, or try to force your way to a contending team that needs you, wants you, and employs former coaches and colleagues? Almost any competitive athlete would want the same things that Brett does. Maybe they wouldn't go about it the same way, but just suggesting that he's a bad person because he doesn't want to be traded to some crappy team is ridiculous.
If the situation arose on the 20th of June I would truly understand Brett's position. He wants to play and he says he wants to play for his longtime team. He is told that can't happen. 2nd choice would be to play for a contender -- especially one where he has friends, former coaches and a similar offense to the one he has run the past 16 years. I understand.
But look at the response that you are replyinig to. Earlier this year Cook sent out feelers to other teams about Brett playing for them. This is before Brett told the Packers he wanted to play, and before the Packers told Brett that they had moved on.
Why at that point, before he decided to play and before the Packers told him they have moved on was Brett's agent trying to find out what teams were intested in Brett?
Well it certainly makes some sense to see what teams may be interested before making this decision to come back. If it turns out that Cook asked around way back then, and every team he asked, including the Vikings, said they weren't interested, then Favre has much less leverage. Maybe he sees that the only team to play for again is the Packers and he knows that they want to move on with Rodgers so he stays retired.
I look at it as finding out what your options are, as well as finding out whether other NFL types still think you can play. At that point he knew that TT wanted to move on with Rodgers, even if that wasn't public yet. So we wanted to see if other teams agreed that he should stay retired.

So you are saying that it makes sense to see what other teams want Favre to play QB before Favre even communicates that he wants to play again to the team that has him under contract? Why would that matter if he wanted to play QB for the Packers. Just pick up the phone and tell them, no need for your agent to contact the Vikings and see if they are interested.
In June Favre said he wanted to play again and play for the Packers. Why would he have his agent talk to other teams in April?? Why would he want leverage?
This only makes sense if Favre's true intention was to play, but not for the Packers. And then to wait until the right time to spring his desire on the Packers in such a way as to force his release.
Your scenario is certainly possible, but I think it's also possible that he knew that GB did not want him back and wanted to move on with Rodgers (which again, is defensible) and he had his agent see if other teams thought that same or thought he could still play. You're acting as though in April Cook was trying to work out deals with other teams. It's just more likely that he was just floating the idea of Favre playing in 2008 and if it wasn't for the Packers, would you be interested?
I think that's a reasonable thing for him to do if he thought that the Packers wouldn't take him back.
But by all accounts in late March the Packers asked Brett to reconsider and in May when Brett said he might play the Packers were receptive and were even going to get on a plane to Hattiesburg to make it happen -- until Brett changed his mind. So in April, when Cook is talking to other teams, the Packers had indicated that they were willing to take Brett back. So no need to talk to other teams.
So what, in April gave Brett any indication that the Packers would not take him back. It was not until after this second flip flop that they all agree the packers advised Brett that they would have to move forward.
Where is the May plane thing coming from?
My understanding is, I think it was the OL coach was visiting family near Favre, and visited Favre, he the OL coach then told McCarthy he thought Favre was having second thoughts and he should talk to Favre. McCarthy then called Favre, and supposedly told him they would welcome him back and would send down the jet to make the annoucement. Before the jet was sent down, Favre elected to stay retired. This all happen the end of March.....can't find anything about this happening again in May. Please show me a link where this happen again in May.