@Khris
This is day 9 of my League.
I have 0 goals conceded so far and avg about 6-0.
Click image for larger version.  Name: LEAGUE D9.jpg  Views: 96  Size: 25.8 KB  ID: 123883

Those are the defenders I use most in the League games
Click image for larger version.  Name: rates Gonzalez 75.jpg  Views: 101  Size: 52.4 KB  ID: 123873

Click image for larger version.  Name: rates Prytz 78.jpg  Views: 100  Size: 53.7 KB  ID: 123875

Click image for larger version.  Name: rates DESAILY 105.jpg  Views: 100  Size: 52.8 KB  ID: 123877

Click image for larger version.  Name: rates COSTACURTA 109.jpg  Views: 102  Size: 55.0 KB  ID: 123879

Click image for larger version.  Name: rates RIKARD 115.jpg  Views: 99  Size: 55.2 KB  ID: 123881

So the first two, Gonzalez and Prytz have better rates that Costacurta and Rikaard.
Does it mean that I must invest more to them ?
Hell no !

The other two are young, fast trainers, can have extra positions and good sa and gonna last more seasons.

Rates and stats of the game are overestimate.

There aren't "good" or "bad" players or form.
30% of the game is Luck, roll dice
30% is high quality good players
30% is watching and coaching
and 10% miscellaneous