The Celtics are trying to follow San Antonio's example of the last few years. The Spurs have mixed old star players with young, athletic role players to great success - at least in the regular season.
The evolution of the San Antonio Spurs over the course of the last five years has been as interesting (and, really, unprecedented) as that of any team in recent memory with a consistent core of players. Aside from the fact we rarely see groups of players remain together for the length of time Tim Duncan, Tony Parker and Manu Ginobili have, watching a team's style go through a complete metamorphosis the way the Spurs' has is a whole different story. This was a team that bored the country with defense on its way to four NBA titles but rarely finished atop the regular season standings, opting for health rather than seeding come playoff time. Then again, those teams weren't as deep as this one.
The Spurs finished with the No. 1 offense in the NBA in 2011-12 (yep, above the Thunder) and the No. 10 defense. That's darned elite, and it's the opposite of the team we used to know in San Antonio. Back in the mid-Aughts, the Spurs were consistently No. 1 or No. 2 in defense, with an offense ranging from around No. 10 to middle of the pack. But the Spurs went up tempo, Tony Parker took over the offense completely and San Antonio scored beautifully on most nights.
Green's shot completely deserted him in the Western Conference Finals, but the Spurs were smart not to overreact to that. During the regular season, Green's ability to space the floor, defend shooting guards, and leak out for transition three-pointers was a huge part of what made the Spurs the Spurs. His shooting might be due for a regression, but he's a smart, heady player that will find ways to help out when his jumper isn't falling.