Totally different players.
Bargnani is a 4-5 but I think he defects in rebounds. He doesn't like to play hard under the basket and this is what he misses to become an all star.
Gallo is a 3, more talented than Bargnani and more SG than PF (at the moment, in the future I don't know what will happen).
If they're both at 100% (Gallo is playing now at 50% of his potential, hope things is going to change) I take Gallo all the life.
If you don't remember Gallo's age, it's very simple, just remember his
number: 8
He was born the 8th of august 1988 (8/8/88)