Duncan and Gasol in the paint.
Damn like Robinson-Duncan Part 2. Twin towers in the making. This is what I liked than guards or forwards on the floor with the same style of offense (pointing to D. Rose and Melo). Gasol-Duncan tandem on defense is really a strong wall to breached.
Plus they still have Aldridge in there so Gasol is a very big addition to them in preparation to them losing Duncan probably in the 2018 season.
But I guess Duncan will only have 1 or 2 years left in his tank. Having Pau Gasol will give them few more years to be a contender. Duncan only plays like 10-15 mins a game so I guess he won't be a liability even if Gasol is already there. This will also make them a bit attractive for guards knowing that there Spurs will have solid big men for a few more years.
Though I like to see Pau Gasul play in spurs, I think the team needs a younger player so that they can cope up with young teams. And a young center can be trained under Duncan while he still can play. That is a good opportunity to teach young players how the Spurs play basketball.
I dont think presence of gasol gonna help spurs to bring the champ although he may help in D department but the game phase is evolving now fast phase players are the most succesfull team as you can see gsw and cavs team they are successfull on their execution because they have the youth,shooters and fast players unlike spurs their players are old anD slow thats why its very hard for them to step in in the finals because they are beaten if they face the powerhouse team in the nba.