Rabiot actually a capable passer in his season with PSG and under Sarri and Pirlo. His passing mostly above 90% in Ligue 1 and around 88-90% under Sarri and Pirlo. While under Allegri completetion rate is around 80%. His long range passing accuracy also decreasing from around 85% to around 60-70% under Allegri.
Rabiot is a good progressive carry of the ball and McKennie have a good engine move forward and defend. So if he want to keep this line up he must have a plan how to use the best of his players. Like when Loca and Danilo crowded with Thuram-Lautaro-Miki-Barella, there are option with the movement of Kostic/Cambiasso or even McKennie/Rabiot, even Gatti to open up passing channel and move forward.
It should be coached well so players know how to move as a team