Problem with Asik is that he is so inept offensively, you need that much more scoring from the other positions. Given Rondo's poor outside shot, this is only exacerbated.
That is why I'm hoping that Embiid somehow drops to Milwaukee, and they agree to trade Larry Sanders to us on draft night. Get more out of the 5 position that way.
Larry Sanders is even worse offensively than Asik.
He's only shot above 50% once in his four years (his break out year at 50.6%), Asik has never shot under 50% in a season. The career offensive rating of Asik is 105, for Sanders its 101.
I prefer L.Sanders to Asik offensively.
Both low skilled offensive players but Larry Sanders has much more quickness and athleticism. Makes him a more dangerous scorer in transition, on cuts (and pick and rolls) and when finishing around the basket. His leaping ability in particular makes Sanders a hell of a threat on lob passes which he would certainly get a ton of playing next to Rondo.
Asik's main advantage is his screening ability.
Other than that, I think they are fairly equal in offensive ability. Passing ability. Jump-shooting. Low post scoring. Face up game.
Sanders just needs to cut back a bit on those jump-shots.