Is this year the mavs only true chance to win a championship?

It not just that, Dirk and Jason Kidd basically last chance because like you said, they aren't getting younger. In my opinion yes, this is really their last chance before the Dallas Mavericks go into a Rebuilding stage. Dallas have alot of veteran players, but like only 3 players that is considered young. I think Dallas is going to have a good recruiting season because they knock-off the 2 Times Defending Champions, but a NBA Championship? I think Dallas may have a good Free Agent season unless we have a Lockout lol.