I think Markarian needs to line up a friendly or two against the likes of Iceland, Lithuania, Albania, Georgia or Kazakhstan.
Try a few different attacking options out: Aravidis, Karelis, Gianniotas, Ninis. Also Markarian should instruct the strikers to shoot on sight of goal. Most other European teams do as chances are the keeper fumbles the odd shot and a lurking striker bundles it home. A lot of the time our players seem unwilling to take a shot and instead pass the ball when a shot is the best option.
With regards the Hungary game I think it was unfortunate that Samaras and Mitroglou were injured as I think with their inclusion we'd have wrapped up 3 points.