The best starting pitchers left outside of Lee are De La Rosa and Pavano, two guys the Nats have interest in. Webb remains the most intriguing possibility for teams willing to take a risk. All signs point to the Nats going after Webb first, but he seems content to wait until the Winter Meetings (Dec 6th) to get the talks moving. Waiting at this point is a dangerous game. If another pitcher signs, particularly De La Rosa or Pavano, the supply gets that much smaller. Waiting might rob the Nats of any leverage they have with Webb forcing them to sign him to a much more player friendly deal.
That's not the worst thing usually but this is a deal for a guy who basically hasn't pitched in 2 years. You aren't talking worst case he crashes and is a mediocre innings eater for you. The worst case is he doesn't pitch at all. Of course all this is exactly why Webb is content to wait. Everyone knows the caveats that comes with signing Webb but at the same time everyone always needs pitching. Some team is going to come out of the early signings with nothing to show for it and will be desperate to throw money at someone, even someone like Webb, to show that they are doing something. Webb wants to be the guy they throw money at. (who wouldn't - I wouldn't be surprised if the more veteran Pavano does the same thing. I expect De La Rosa to sign though before the meetings)
The Nats are already stuck in a holding pattern when it comes to their offensive moves until Adam Dunn makes a decision on arbitration (has to by
Of course this is assuming that they really do have interest in these other guys. It's quite likely that they see Pavano and De La Rosa as "maaaaaybe we'll try to get one of these two if we can't sign Webb" players. If so, more power to Rizzo and everyone, but they better be able to sign Webb, and they better be right about him still being able to pitch effectively.