1) ask in the tactics section
2) do not make a tactic around your player, make a tactic around your team
3) do not make a young player your playmaker, it never works
4) tweak his PI's so he does exactly what you want him to do, play exactly to his strengths in your league (playing with a very small team I remember) dont burn him out by playing him every game, especially as you said in another thread most of your players condition are under 90 before a game