Coutinho is doing nicely with Inter, plays most of the time for them, Tafer is at Chelsea (on loan to Championship Fulham) so obviously not really broken through yet, Muniesa is having an average career at Celtic now.
Is it worth buying 2010 simply for the new squads, or is it a lot better than 09?
I wouldn't say a lot better but certainly improved. The new interface once you get used to it is imo a lot easier to navigate around. Transfers have been improved as you normally (besides kaka, ronaldo etc) can buy players for a more realistic price. Also the touchline calls are useful too! Although the press confrences seem to have the same questions as the last which is bloody annoying, so now i just let the assistant deal with them.