Look at Partey’s games at Atletico and for Ghana. Under Simeone he has often looked reserved, but that’s because Atletico are generally a conservative team that absorbs pressure. For Ghana he has much more liberty and looks more like a traditional B2B. I shared his statistics spider diagram for this season. He was up in the 95th %ile for take ons, 75th for passes into opposition half completed. Prior graphs showed him being very strong on progressive carries (which weren’t measured here). So this is someone who can do offensive damage.
Giving him a more defensive partner will release him to be more adventurous, but you’d still have the benefit of 2 men who can both adequately defend and attack, and are both strong and fast. When last did we have that?