Canas gave our team incredible stability in that midfield, that's for sure.
If you recall, Lucescu has said in the past that he doesn't really believe in DMs per se. Which is why he's so willing to have two standard CMs (Mauricio/Shakhov or Mauricio/Misic). Hell, even Wernbloom is a bit more offensive than I'd expect for a guy in the DM position. For me, the jury is still out on Pontus since it seems to take everyone forever to acclimate to Greece, but there are some interesting decisions to be made for those two positions:
Mauricio, Misic, Wernbloom, Moulin, Balogiannis, Charisis <-- players we for sure will have under contract
Canas, Shakhov <-- players whose contracts are up, previous rumors say only one will be re-signed
Oliveira <-- 6-month loan with a presumably massive cost to make permanent
That's nine players. If we move on Oliveira, then I can't see either Canas or Shakhov coming back. It wouldn't make sense. And yes I know Moulin is almost certainly going to be released (though I can see Charisis being loaned out again).
Also - why do you guys think Branco has nothing to do with these moves? He's a Portuguese TD who has grabbed two players from Portugal. Or are you just waiting to credit him with any failures, you negative nancies?!