alastair
ignorant
Big players like tevez, silva and toure joined city before they were in the cl. If a club can offer a player a lot of money as well as convince the player to buy into the clubs projects and goals then they can sign them. Kolo and adebayor left arsenal before too when city weren't in the champions league. If players think that united have more potential in the than long term than arsenal and can reach greater heights they will join united over arsenal.
Yeh, that's when the ridiculous cash comes in. Are you willing to give Cesc £250,000, for example? Man City were willing to give us £15m for a washed up Toure.
There's also an issue now of so many sides being able to offer similar high salaries that players have a legitimate choice.