#3 More negatives than positives for Spurs
Tottenham's victory may have ensured an automatic qualification to the knockout stages of the Champions League, but it mostly just exposed the flaws that plagued their squad before Mauricio Pochettino was dismissed from his managerial position this month.
The North Londoners have paid dearly for their defensive errors this campaign, and appeared to be on the brink of another fine when they conceded two goals to Olympiakos to become the team with most conceded goals in the Champions League since last season.
Olympiakos duo Giorgos Masouras and Daniel Podence were a constant source of danger as they used their pace to surprise and threaten Spurs' already-fragile defence on the other end. Hugo Lloris' replacement, Paulo Gazzaniga, also failed to establish a crucial line of communication with his defenders, causing even more problems for themselves at the back.
Mourinho's new side have only managed to keep four clean sheets in all competitions this season, and the Special One has a Herculean task ahead of him if he is to eradicate the squad of their present crisis.
The controversial Portuguese might just have to look through his immense experience in defence-centric approaches to address one of the many problems he knew he had to solve when he succeeded Pochettino.