Here is a new version 4 of the "winger" system as I made a few tactical modifications. It works pretty well for me.
You will need a left footed person as a right technical midfielder to go to the centre from the side as it's more efficient this way (Yusuf Demir or Ihattaren for example), and a right footed person as an offensive winger (and inversely if you opt for the reversed version).
This system is based on high possession of the ball and constant threat in front of the opposition area.
The defense is (according to me) very strong too.
Thank you to all of you and good luck if you wish to test this system.