Johnny Boulders was immense in CD.
Imagine what attacking outlet he could have been had he used him in the DM role that Pep uses him for.
Stones would look ordinary in midfield without Rodri and Gundogan next to him. Like Villa away ordinary, where a Pep team got dominated like never before.
Stones's role in midfield is to help Rodri but he can't be effective without Rodri. Generally, what Rodri does is extremely difficult, but a bit too subtle to be appreciated at times. He makes it look easy.