I tell you what is so great to me about Rodri and why he is a difference maker. Once normal players are pressured, their field of vision gets boxed in to the point that they pick the easiest escape pass, which is often what opponents want. With Rodri, the fact he sees players pressuring him does not affect his ability to be lucid and operate normally. It is simply a matter of knowing before hand "ok, so if I ask the ball here, I will for sure draw increased attention from opponents, but if they do this, X player gets more free and I can access him instead". All that gets processed very fast by midfielders of a certain class. That's all there is, this is the secret of unlocking pressing scenarios. Not being intimidated by it and being confident enough to punish it. Sounds easy, but in big games, it is tremendously hard and only 3-4 midfielders really had this in my 30 years of watching the game nearly.
Xavi had it, Busi had it, Rodri has it, Pedri doesn't have it (yet). When you try to press Pedri, you get the result you want as a pressing team. When you try to press Rodri, it can backfire. The 3rd goal vs Sevilla is a proof of that. And this is Rodri with minimal adaptation.
Pedri is great at facilitating the ability of Rodri to obtain a bit more time to deal with pressure, but Rodri is the orchestrator, there is no doubt about this. Rodri is the one deciding when to circulate the ball more to make the opponent overcommit in their pressing attempts. You can even see him scanning for forward passes, and when he sees the opponent still have proper structure, he circulates the ball more. And when they finally have gaps do to having to chase the ball too long, trying to cover left, right, left, right again in succession, that's when the splitting pass comes.
Pedri can pass quickly, he can have a great touch, a smooth dribble, and that is valuable also. Think about commander in chief in midfield and 2nd in command, right hand man.
Pedri is going to struggle a bit because the role he thought he had, is no longer assigned to him, because we brought in a superior midfielder at this task. This is going to help Pedri a lot, because he was never supposed to be a true deep lying playmaker. His ideal position is what he can become with Rodri.
Rodri is not perfect. We got him older, after some injuries, but it can still be the missing piece because neither of Pedri, much less De Jong, have his vision, calm on the ball, and range of passing.