I'm not sure i totally agree. Yes we had a great run end of last season/early this season but many of those games were drawn and both games v the Norwegian side, who sat back in both legs, we did struggle to create chances , albeit Eze was absent in the first leg.
With no Sarr, which we've known about for months, we have struggled to create chances and the stats show this. Having an out of form Pino, and a hardworking but limited Devenny either side of Mateta is not a great line up, regardless of the opposition.
You mention changing the system and integrating 'new guys'. Well OG never changes the system so i can't see any changes there and if new guys includes fringe players well he's had opportunities to give them time off the bench and has rarely done so. Now there is some logic here - the fringe players are not as good, but when Munoz got injured Clyne had barely played any minutes all season. You could say the same for Esse and Uche - they barely get game time so when they do they struggle. Against Villa he didn't even give Uche minutes, despite Mateta tiring in the last 20 and he let Esse go out on loan before the Macc game despite limited options in the attack and then plays a 16 year old in that position