Is anyone else really paying attention to what Schefter said? He said that they have always been close to a deal (whatever that means), and that things haven't changed significantly, but they are close to a deal. In other words, he thinks they could be close to a deal, but doesn't really know how close. Also, if you paid attention to what he said behind the scenes (before going on the air), Schefter was saying both the Patriots and Moss have been pretty silent, and he hasn't really heard much throughout the process from either side.
Seems to me like he could be speculating that they must be close because Moss isn't really showing any interest in other teams, and has been somewhat silent.... I really hope he's correct though, and that would seem like a pretty decent speculation (both sides are not making any noise, so you'd think something must be up). Moss doesn't really seem to be getting all that much interest from other teams, either. And, a lot of teams have already purchased their new WR's.
Schefter is usually one of the most accurate, once it comes to the contracts actually being signed, but sometimes his sources and speculation pre-contract finalization are off, as is the case with every reporter.
Remember, he works for the league, so he's always going to know about deals being finalized before just about any other reporter, but when it comes to negotiations he still has some of the same sources.