Tzavellas had a great chance to be the starter at PAOK last year, especially since Lino was atrocious for much of the (first half?) of the season. At this point, however, he is a shadow of the player that Rat is. He's a worthy backup (right now), but should not play CB. I can only assume he started the last match so that Costa/Papagiannopoulos could be rested for the playoffs.
As far as the ethniki goes - as much as I dislike Holebas, I understand that we rely heavily upon our fullbacks to create chances and so on. It seems clear to me that similarly offensive-minded players are going to be used in the future (once Holebas declines) - mainly, Stafylidis.
I should also note that Skondras, a RB, has also shown that he's a better LB than Tzavellas. A shame.
Regarding this match - I watched the second half. We did all right, but we had the same problem we always have - we can't finish. DPaps has been doing better lately than Klaus (a LOT better), so thank goodness we had him there to score this brace. The goal against us was caused by a stupid, stupid mistake, as the defender was caught out very far up the field...