Schefter has softened his wording, saying the deal has been "agreed to" and "expected." Paperwork has been drawn up; Cassel will be traded. Schefter says there is now some question whether Kansas City could be his final destination. The "mystery team" is supposedly a surprise, which would seemingly rule out Tampa. That team could either swoop in or get involved in a three-way deal. Cassel is also working out a possible contract, which is probably the biggest factor in holding up this news. It's possible the Patriots agreed to trade compensation, but Cassel's contract demands are holding the deal up. If Cassel is dealt, it's safe to say the Tyler Thigpen era is over before it started.

Here is a link too:

http://fantasyfootball.usatoday.com/content/player.asp?sport=NFL&id=3237

This does not make a ton of sense to me, but it is what is being reported.