As much fun as it would be to slot in both Xabi Alonso and Quaresma... I don't see it.
My gut says this is baseless, with the sole intention to get Liverpool back to the table. Xabi Alonso is Juve's man... and all this other talk is likely meant to bolster their bargaining position.
I really think the priority list at Juve HQ is as follows: skilled CM, backup GK, young striker, winger, defender. I think its on the right track, but defense is a way bigger priority than the management seems to think.