the Pep in me is worried about the large number of midfielders .. Pep never wanted more than 4 established midfielders backed with youth ( copa - second tier games )
Pep never had long term injuries to his midfielders, like in 2005 when we lost Motta, Edmilson, Gabri (versatile all round player, something like Roberto) + Larsson, 4 players injured in the first half of a season with cruciate knee ligaments.
Or in 2006, when we lost Xavi with the same injury, in December.
Till 2015 and Rafinha, we were lucky not to have similar injuries to key (midfield) players anymore. (Ok, Milito, Villa)
So, yes, Pep gambled with 4 midfielders and luckily didn't sustain injuries.
Also, Pep didn't have any plan B in his gameplan with taller or different players, or playing counters or anything, so he didn't need more players.
We do have too many midfielders right now.
But if Samper will go on loan, and if we somehow sell Arda, it will be a nice team.
Roberto is a RB-CM-CDM.
And other pure midfielders are only Iniesta, Rakitic, Gomes, Busi and youngsters Rafinha and Denis.
You'll have Pep's recipe again, to some extent, plus we will have additional option in S. Roberto. 4+2+1 midfielders.