Chemistry is nothing if it means not having any healthy players.
Lube beat Perugia without Juantorena or Sokolov as titulars. I think it's entirely possible they can beat any team without Juantorena atleast.
World Club matches and CEV are coming soon. It's not easy for an "old" team like Lube. Juan 33, Stan 33, Leal 30, Cester 30, Simon 31, Bruno 32. If you rest Juan, whom are you gonna put on court, Barnes, Massari or Brenden? As long as Lube's starters are not injuried that bad, Medei will keep them on court, like what he did in previous seasons.
Lube can beat Perugia for sure, but they lost in all clutch games in last season. That's why they got 3 runner-ups in Italian League. With Leon in Perugia, the chances of Lube beating Pegugia look slim in this season. The last game Perugia beating Lube was a slaughter. Let's see how they adjust in the future.