You really have had it out for Lucescu ever since he booted your boy Warda to the curb for good.
Comfortably our most successful coach ever, if he ain't it then I don't think any available and willing manager could come in and lift this team to better results. Also for the record we are equal top in the league. Yes Europe so far has been disappointing, especially the last 2 games but as @Bananas pointed out this is a step up in competition/level and the whole squad hasn't been able to adjust (coaches and players alike).
I do realise that you were probably half joking, but I also know you have never been Lucescu's biggest fan. I would point to Pana as an example of a club who knee-jerked into sacking their coach (Jovanovic) off the back of a poor European campaign. Almost a year later they are still chasing their tail and are teetering on the brink of sacking a 3rd coach in less than 12 months.
Perspective is also key, we are a Greek club. If Razvan is moved on, I don't think Jurgen Klopp is banging down the door to take the reigns. We have a good coach who understands the club and the landscape of Greek football, as well as having a proven track record of winning trophies. He is by no means untouchable, but he has more than earnt the right to steady the ship.