If they need to win, then why are they playing just to stop the Argentina players?
There's no adventure whatsoever and are playing not to lose the match at most.
There's a point at which you can hold your hands up and say fair play they have defended brilliantly, for instance - the N.Korea v Brazil for the majority of the game. But Greece are showing nothing going forward and if anything they are just playing 'anti football'.
Edit: Just look at the subs made by Greece now.
Think it would be suicide to leave Messi and co. up-top on their own whilst looking for a goal, especially in the first half (when you posted).
Agreed they lacked adventure, when they should have been pushing forward in the second half.