Splash the cash on the big man Ferdy. He's so good. Your defence needs this upgrade. He will make the difference in your backline. He'll win you games with his agressive playstyle and amazing interceptions. It feels like your opponents have to pass him twice. The human wall. Have used prime Desailly as well, but he is a class below Rio. This guy can carry your ass all the way to Elite WL.
Expensive (but worth it tho)
Dribbling, but who really cares
Shooting, but it's better than Bakayoko's shot