We should be much better because of the upgrades at our weakest links:
Portland was 14-13 (.518) when Juwan Howard was our starting center last year. It was 36-19 (.654) when he wasn't. Having a quality center who could rebound and defend is just absolutely critical for this team. Between Camby, Oden and Przybilla, I just don't see us going 27 games where we have to field a center the caliber of Juwan Howard.
Now let's talk about Rudy Fernandez. In the 17 games he played more than 27 minutes, our team lost 8 (.529). When he played fewer than 27 minutes, we won at a .630 clip. I think Rudy is a little bit of a "garlic" player--you add him in some and he can really do wonders. You add too much of him and he ruins the sauce, because his offensive style is less of a surprise and coaches and starting-quality opponents get a chance to exploit his crappy defense. (Of course, Rudy also got more minutes when Roy was out, so to be fair it wasn't always just a case of too much Rudy, but also too little Roy.) With Wesley Matthews in there, I don't see why we should hardly ever play Rudy big minutes unless there's a blowout.
Add in that the odds are that we won't have so many guys injured and the number of guys entering their prime far exceeds the number of guys leaving their prime, and I can't see how anyone can expect them to do the same or worse as last year.