Ballack was a top free transfer. The only problem we had with him, was putting him in the same midfield as Lampard. Similarity of the two bothered us a hell of a lot, but as he got older, he got much better and more experienced as a player, and... more importantly, he loved being at the club. As for Carvalho, we got him immediately after he had a great Euro 2004, and at 26 years of age, I wouldn't say he was at a peak year. I see what you mean about Arshavin possibly coming to a club that's a lot different than what he's used to, but if you can imagine Arshavin coming to Arsenal first off and feeling exactly the same... yet he did rather well for them to start off with. It's all about team bonding at the end of the day.