I like Gert's answers
but let me add few more
- If I 'm not satisfied from a player's performance and decide to sell him, I prefer not to add sp to have him as a q_1 (q_6) and trying to sell him. Better loose some sp and sell him easily as a q_4 (q_9) player - specially near the end of the season
- Prefer to keep sp for a long time, to see how many, my player earn from the day I bought him
- Try to observe how my player is performing as a 5* player, and then if he 's getting better with extra sp
- Try to see how my team is performing as a 5* team and not as a high q team
- Try to surprise my rivals in the Cup or in CH.L. - playing as a 5* team, and then before a semi-final, to add gathered sp to my players
- Keeping 50 sp for a player that maybe I give an extra position or if I 'll not find a player with a position I 'm searching, in the new season.
- Trying to "reverse" a bad form of a player by giving him many gathered sp