I don't know, I guess on paper the '10-'11 team was stronger, especially near the top, but I have more confidence in this year's team.
The team a few years ago had a lot of question marks. Perk was rehabbing a major injury, KG was coming off a subpar season, Shaq was pushing 40 (years) and 400 (pounds), and JO was JO. Delonte was coming off legal trouble and Wafer was a questionable fit as well.
I liked Ainge's summer that year, but he went high risk/high reward. We saw both ends. To see that team falter was ultimately unsurprising despite how good we looked for first third/half of the season.
This year, we have players who have defined roles (I don't think we have JO-esque role problems) and are younger and more versatile. I feel we are more likely to overcome injuries, because most of our players can play multiple positions (of our top 10, only Rondo and Bass are the only players I am not comfortable with at 2 different positions).
KG looks re-energized, Rondo looks like an MVP (at times), Terry is the 6th man we haven't had since Posey, Green can finally take pressure off Pierce, and we have a great blend of defense and shooting.
Less than 2 months until training camp opens, can't wait.