Half a season? And the World Cup (brief as it was)? I don't know what more you expect a player of that age to do.
Dont know what you saw him do at the world cup? As others have stated fabregas, fowler, owen and shrek were all arguably better at his age. Anyway we cut it 49mil for a lad who has a short time left on a contract is expensive and if any other club had paid it we would be scoffing at that fee.