Looking at your tactic, I would NOT say that its a possession based approach and can only assume that you hold possession deep simply because your advanced players gets isolated from the players in the trasistion phase. If the opponent tries to storm at you, I think you will have no problem hitting them on the counter though but as sson as they stand off more, you see possession where you really dont want to see it, amongst your deep players.
Why not assign your wingbacks to attack and use at least 2 advanced players on support.