Thank you for your replies.
Beckstar gave the complete answer I was asking for, by posting his own example.
I searched with "key" words all the forum, I found some relative threads but I didn't find any thread that an older player post his personal example and it didn't work.
Instead I've found threads that some people said that it help them for the next season and some others said the opposite but without explain why not.

http://forum.topeleven.com/top-eleve...ew-season.html
http://forum.topeleven.com/top-eleve...xt-season.html
http://forum.topeleven.com/top-eleve...ier-group.html
http://forum.topeleven.com/top-eleve...ew-season.html