Screwing the Vikings with Favre

It occurred to me this morning that the Packers may very well trade Brett Favre to a division rival. But don't be surprised if they wait until late in camp to do it. If Green Bay is going to battle Minnesota for control of the division, doesn't it make sense to disrupt the Vikings' preparations with a monthlong is-Favre-coming-to-Mankato circus? Then, once the Vikings have installed an offense with Tarvaris Jackson in the middle, and the team has rallied around Jackson, the Packers throw Favre into the mix? A situation like that could be absolute poison.