I don't feel there's much appreciation for what made Busquets so special and vital as a cog in what so many argue is the best club team of all-time and what cements his place in said team.
It's not just beating the press, it's in first time or quick 2-touch releases straight through the lines that completely disorientated opposing midfields. But not only that, it meant Barcelona almost never had to have anyone drop back into deeper midfield to support or aid in the build up to break the lines because Busquets had already done so, by himself, often with just a single 1-touch pass. There doesn't seem to be any acknowledgement of this and its importance and why it made Busquets as equally invaluable for what he did as Xavi for what he did and Iniesta for what he did in turn.
This is, quite literally, the pinnacle of this style of football 1:1; there isn't a better player than any one of them to do what they did. Why? Well partially because this is the first time it's been a specific, wedded system - sure, in the past, we've seen some sublime midfields, capable of great passing sequences (France '84 immediately comes to mind), but Pep's side is the first to make it dogma, on repetitious loop, with no variance. In other words, they were the first that you knew exactly what they were setting out to do from the first kick of a ball at the start of a season, to the last. Your teams task was to try and prevent it from happening, but it was an inevitability what you'd be facing.
So it's not: is X, Y or Z better as an individual all-rounder than these players, it's: can they do what these players did better than them within this framework? And the answer to that is no. Even if you had a Beckenbauer, Falcao, Maradona/Laudrup/Platini line up, it still wouldn't be better because we've never seen any of them do the same thing over and over and over again to the point of ad nauseum nor do we know if they could because it's essentially having their wings clipped - you do as the system demands, not what your abundant talent instinctively desires.
Rodri might be a better all-round player than Busquets, but he will never be better at doing the things the system demands than Busquets, who by way of the system, we can objectively call the best deep one and quick release 2-touch player the game has ever seen because it was his literal bread and butter for an entire career, and because of that, it's a body of work that is unrivalled, given this is the most pass intensive style of play football has ever had.
This whole exercise is basically trying to make what is already considered the best or second best side of all time better with components that are amenable to the system and its best players. That means: catering to Messi; functionality around the locked midfield (for the reasons stated above), particularly at CB and LB, and as much edge as possible - within the framework - to enhance the attacking position Messi isn't in without getting in his way in any shape or form.
GK, CB's (and even then, it's not about individual over how great are they as functional cogs in the system), LB, LW and whichever from RW or STR that Messi isn't playing.