Messi will play all the time, especially without NT team now.
Neymar always plays all matches, he will get angry otherwise.
Suarez don't have a sub.
Iniesta-Raki-Busi will play as starters.
From time to time Ini/Raki will get rested and Rafinha/Arda and Denis will get some minutes.
Even there we will already be crowded.
If Roberto will be a starting RB, we won't have to worry about him as a Cm.
But if Lucho will turn to Vidal somewhere during a season, then Roberto comes back to a midfield rotation (plus a RB rotation) also.
And players Rafinha/Arda/Denis+Roberto will get even less minutes.
Ok, last season we lost energy in the end because of a lack of rotation, but we won't suddenly go to Lucho's first season where he played a different midfield trio/or the whole 11 in every match.
And so, if some of you guys are expecting lots of rotations and lots of playing time for both Ini, Raki, Busi + Rafinha, Arda, Denis, Roberto and Samper=I think that you will be disappointed.
Again, if Roberto will play as a RB, that is one man less in midfield.
But it remains to be seen how things will develop on our RB position.
Also, majority of fans would like to see more minutes for Rafinha, Denis, Samper and Roberto in midfield, and less minutes for a granny Arda.
But that won't happen.
If Arda will stay, he will be Lucho's 3rd or in the worst case 4th pick in midfield (after Rafinha).
If we have learned something from Lucho in these 2 seasons it is that he has his personal pecking order for all positions, and it is very easy to predict who will play in key matches and in smaller matches when he rotates.
Also, in these 2 seasons, only Xavi dropped down in Lucho's pecking order during a season, and Vidal in the 2nd season.
So, unless if something happens like in Vidal's case, then Lucho will have exactly the same pecking order like in previous 2 seasons.
That means:
1st pick: Iniesta+Raki
2nd pick: Arda or Rafinha
3rd pick: Roberto
Denis will probably start somewhere behind Rafinha/Arda in that order, or equal with them.
Samper is currently (and Lucho had him in disposal in previous seasons)=a last pick.
So, Arda won't lose place suddenly.
Samper won't suddenly jump to higher positions in a pecking order.
Busi is never rotated too much etc.
So, we won't play with the same 11 all the time as in the last season.
But also, I am personally not expecting kamikaze season (as DonAk said) either.
So, if Samper stays, it seems as too many midfielders for our needs, and some guys will surely be disappointed over this season.