The question with Marc Gasol is how many shot attempts is he going to get on that Indiana team and how efficient can he be given his particular skill-set with those shot-attempts.
--------------------------------------------------
Marc Gasol is far and away the next best scoring threat on the Lakers so there is no good reason for him not to get 12-13 shot attempts. Gasol got 5.4 FTAs on 9.4 shot attempts last season. So let's say he gets another 6.5 FTAs on top of his 12-13 shot attempts.
So even if Marc Gasol's FG% dropped to 54% (on 12.5 FGAs), and his FT% remained constant, Marc Gasol would be scoring about 17.8ppg (TS% of 58%).
-------------------------------------------------
Marc Gasol is also playing with Kobe Bryant who is one of the best playmaking wings in the NBA. A player who receive a huge burden of the opponent's defensive attention + who will create easier shot attempts for his teammates. Consequently, Marc Gasol will still receive a healthy number of easy shot attempts.
Marc Gasol has a good low post game. He'll be very effective against against mediocre or subpar post defenders but his scoring will decrease when facing top notch post defenders. He is very intelligent, excellent shot selection, a good passer, is very good on the pick and roll, has a solid jump shot (35% of his shots were jumpers, he hit 44.5% of them, mostly short and midrange jumpers). He gets on the offensive glass which also creates high percentage shot attempts.
-----------------------------------------------------
I think this is a guy who can raise his scoring to 18ppg on that team and still remain highly efficient. He'll get the opportunities on that roster and I think he has the skill-set to answer those demands against all but the toughest defensive centers.