Have you stopped and carefully looked at the frontlines of each of the top centenders in the league? All of which feature at least 2, in many cases 3, players of great size and length in their frontcourt rotation. Let's take a look, shall we:
Fakers - (Gasol, Bynum Odom, Mbenga)
Blazers- (Aldridge, Oden, Camby. Pendergraph)
Mavs - (Haywood, Chandler, Ajinca, Mahinmi)
Celtics -(Garnett, S. O'Neal, J O'Neal, Perkins)
Magic - (Howard, Gortat, Orton)
Heat - (Ilgauskas, Magloire, Bosh, Pittman, Howard)
All these guys at least 6'10" or above. Many of which are legit 7-footers. All the top contenders have size and length. And to add further insult to obvious injury, the Fakers added Spurs castoff Theo Ratliff, to help further shore up their frontline - as if they needed any more size?
All these teams have responded to the talent "arms race", by trying to match size with the Fakers. Meanwhile, the Spurs roll out Duncan, Splitter, Dice, Blair and Bonner. Get the picture? The Spurs are STILL undersized. Again, having Splitter is a wonderful addition that will be of great help to Duncan. However, the Spurs shouldn't have stopped there. Duncan and Dice are aged. Blair is woefully undersized.
For the past 3 postseasons, the Spurs FO and many of us fans figured that the Spurs had enough to contend against the top compe ion in the West. And every spring, we've watched Duncan get literally worn down from the burden of having the carry the team's offensive and defensive load, on both ends. Recall how the Suns picked and rolled Duncan to death, while literally running rings around the Spurs defense on the perimeter, during that epic 4-game sweep? Teams that win the rebounding battle and can stop their opponents usually win. The Suns outshot and outrebounded the Spurs in each of those 4 playoff games. They won handily.
The NBA is an ever-evolving league. Of course, there is always a need for shooters. However, at some point, in tough, grind-it-out, playoff games, defense, rebounding and interior scoring usually prevail. Look no further than the NBA finals matchups the past 3 seasons, for further example. If the Spurs had significantly upgraded their perimeter defense, perhaps the size disadvantage wouldn't be as glaring. However, that's not the case. Be it Mahinmi, Ratliff or whoever, this team needed an upgrade for its 5th big.
Nothing can match size and skill, except for size and skill. Anyone who believes otherwise is foolish. Furthermore, it would delusional to believe that the Spurs are adequately prepared to contend or contest against these bigger frontlines, particularly the Fakers. After all, as 2-time NBA champions, they SHOULD be the measuring stick.