Report: Bill Belichick will take over as HC/GM for a different NFL team next year, location already known

Well BB apparently signed a very lucrative extension this past offseason. No one knows the terms or for how long. So how does that factor in with this rumor? Plus, with a destination already determined, is this tampering of sort?

Maybe there is some back channel, “permission to seek a trade” type stuff that’s happened behind the scenes?