We should rotate more, centerbacks, midfielders, defensive midfielders, and even MSN trio.
This is our 2nd season in a row with the same team aiming for a treble.
We were lucky in the last season regarding injuries and not getting hit by an accumulated fatigue.
Guys like Samper, Arda, Vermaelen, Mathieu, Bartra, Vidal should ensure that we survive this Season on a high level, without crashing around March or April, like Real Madrid and 10s of other teams in a season AFTER their huge previous success, due not to rotating players in the 2nd season (it worked in the 1st season, so they thought that they could repeat the same story in a 2nd season in a row).
I think the main reason we got "lucky" with injuries last season is because the rotation from Lucho in the first half of the season was so incredibly erratic that everyone was actually still fresh. How many weeks in a row did we go where we didn't even use the same lineup twice in that entire time span? It was literally impossible to predict what Lucho was going to come up with.
Next season we'll definitely have to rotate everywhere a lot more. That's why I think the signing of Turan is good thing for our midfield and that Samper should be able to get minutes despite all our players there. Lucho promoting both Munir and Sandro gives me the impression he intends to rotate the front line in a similar manner to how he did while Suarez was banned, which would keep MSN's legs from getting tired too quickly. Honestly, during the madness of those first few months, how Lucho handled the front line (Subbing Pedro off for Munir/Sandro, or Munir off for Pedro/Sandro) was probably the most vital part of us keeping such a good streak going.