I don't think it's overly negative or reactionary to say that, right now, the Celtics are a far worse team than most people expected them to be coming into the season. Personally, I felt very good about their roster.
I felt that they were going to have a strong start to their season -- perhaps not as strong as 2009 or 2011, but pretty strong. Instead, they are muddling around .500 and so far they have been superior only to the Raptors in the Atlantic division.
A quick look at the numbers -- which accords with my hunch based on just watching the games -- is that the defense, which the Celtics have relied on to win them games in the past, is nowhere, absolutely nowhere, close to where it was just last season.
But let's put our heads together and try to make a comprehensive list to make sense of this very discouraging start to the season. How do we account for the huge dropoff? I don't think that just saying "the new pieces need to figure out how to work together" is a sufficient explanation.
There are plenty of teams with many new pieces playing much better ball already this season. The Cs played such a team tonight and got their clocks cleaned.