A solution i found about the strikers, was to make 3 players ST + AM and make a rotation in their positions so to keep their stats in a good level.
I play with AML-AMR-ST so I switched them from time to time.
Click image for larger version.  Name: stats Douglas.jpg  Views: 179  Size: 83.3 KB  ID: 70066

Click image for larger version.  Name: stats Fernadinho.jpg  Views: 175  Size: 83.4 KB  ID: 70069

Click image for larger version.  Name: stats Ronaldo.jpg  Views: 177  Size: 84.5 KB  ID: 70070

I know, it's expensive to make them like those, You must find young fast trainers and give them extra positions spending a lot of greens but one solution is if you stay in the same level for a season like I did the previous one.