From the previous lockout in the 50-game 1998-1999 season, we learned that older maybe better.
In that year, the four oldest teams had the league's best records, and the San Antonio Spurs, who fell into that category, ended up winning the championship.
The reason for that trend was the experience factor. Among the difficulties of playing in a shortened season, is a lack of practice time, which leads to chemistry problems. Especially, when major players are either removed or added to a team.
For this year's Boston Celtics, that's a good thing to hear. Though they are one of the older teams in the NBA, the trend may not hold true for them. That's because two games into the 2011-2012 campaign, we're seeing some mistakes that tend to be issues on teams with several new players.
Lucky for Boston, all of these flaws I'm about to list aren't unfixable. There's a lot good going on for this team against two of the best teams early on, so I don't see a cause for concern.