Who is/are the player(s) to buy on fifa 10 manager mode?

None in the first few years. Its best to spend money on young guys that you can get for cheap (Neymar from Santos) that will turn into 90 players. Also get your scouting level to 10 and scout players. Most of them will be under twenty and will be in the 81-84 range. after 5 or so years, during the transfer period you should go on search and search for players over 85 and between 16-19 years old. If there aren