I was very impressed with Tzolis, Retsos and Kourbelis today. Karetsas looked rusty but still had moments of quality, he'll be better for the run.
It's clear Jovanovic wants to play with a number 10. Kostoulas isn't that IMO, he is a striker or he isn't starting. The lack of attacking mids forced him to rotate strikers through the no.10 position, which didn't really work. They all looked invisible for large stretches, Tetti was probably the most involved and he played on the wing when he came on.
I think while Konstantelias is out (either injured or excluded himself) it maybe worth reverting to a midfield 3 with no dekari. Tzolis and Karetas create enough, I don't think shoehorning a striker into the no.10 role is sustainable.
Regardless the team showed great heart and resilience to get the 3 points. Was a huge result in the context of the group. Looking forward to the upcoming matches!