If you play for a not very rich club, and you need cool players, then I advise:
1. Find some rich club (Chelsea, Manchester).
2. Go to the menu of the youth team
3. Rent the youth player that you like (it is better if his contract ends, then the club does not renew it, this player can be taken for free)!
Sometimes clubs get buggy and kick some pretty cool players. So I made Shakhtar the leading club in Europe! Good luck managers!