I believe when Nashville matched the offer sheet it meant that the ONLY team Weber could be traded to was Philly. I'm not sure how long that rule holds true. It's under my impression that Homer offered that enormous contract with 2 goals in mind. 1.) Nashville can't match, Weber stays in Philly. 2.) Nashville matches, can't afford the lump payments owed to Weber before the contract enters year 2, then trades to Philly. Either way, Homer put a huge amount of pressure on Nashville to pony up or bail. Trade isn't out of the question in future.
