Asymmetrical 3-4-2-1 Libero

First season won Double with team Brighton ( League + League Cup )
Only 13 goals given during the whole season
Team stats that are first on the table : Possesion, Goals allowed, Pass accuracy

<Wishes>
1. Left wide playmaker midfielder : left foot
2. Libero : Good passing, Tall, Good jump
3. If the possession is below 50% during the first 20~25 min
    1) Change the 'attack width' to 'Very Narrow'
    2) Change the 'pass length' to 'Very Short'

I wonder how this tactic will work with a stronger team

Sorry the screenshots are in Korean

Please test this tactic thanks