We'll see how pre-season goes but I am not at all convinced about the player. He looked a poor defender every time I've seen him for Barcelona
None of them is perfect.
But Roberto is jack of all trades and master of none.
He can play well everywhere (even though for some reason people tend to remember only his peak performances and for some reason forget majority of matches where he was meh on all positions), but I don't see his ceiling as too high.
Vidal (at least I hope so) has a higher ceiling and he has way more room for an improvement at Barca.
I have written before how I don't rate Halilovic, Adama and some other guys because of a too low footballing IQ.
But on the other hand, Roberto (and Samper) have a problem in the same, mental, area. These 2 guys are very smart guys, but they seem to be extremely scared on the field.
They lack balls/courage/cojones.
From time to time they can offer an insane match (Bob against RM at Bernabeu), but in majority of other matches they fall into a mediocrity and under their fears to do anything on the field.
So, we have players who are as smart as computers (Xavi, Busi, Iniesta), then some regular/average smart guy, and some dumb guys (dumb guys can't make it here).
But also, we have guys who are extremely brave, average guys and somewhat scared guys.
Imo, Roberto and Samper are 2 most scared players in our rooster currently. I don't believe that they can ever turn into a starting material if they'll be that scared.
Skills are there, IQ is there, love for the club is there.
But I don't see them as mentally strong/brave enough for Barca's/winning a CL level.
When you sum all skills, I still have more faith in Vidal (for Barca's RB level), plus Roberto started to play as a RB only 12 Months ago.
To put it in very crude terms: so far Vidal's career has been closer to Douglas's level than to Alves's.
Ok, but then we have 2 very average RBs.
Since Roberto isn't a RB at all, he is scared and usually very average in majority of matches.