People would have said the same about Mourinho's players at Chelsea but he didn't go for any of them, I think he likes to freshen things up, getting the best out of Kaka would be a start, if he does that then Wesley Sneijder would struggle to cement a place in the side. And I doubt Sneijder would be keen on it, Inter are still a very good side and he's doing well there. He needs to be settled.
Van der Vaart will more than likely be available in the summer, it'll be interesting to see where he goes.
Maybe you're right. However, it's a fact that Sneijder never wanted to leave Madrid in the first place, but was effectively frozen out at Bernabeu. Also doubt that Sneijder is that much a lesser player compared to Kaka.