Former European Commission President Jose Manuel Barroso told CNBC that the new government in Greece had to respect the other 18 members of the euro zone in the negotiations.
"It's fair that new governments come with new proposals. I think the partners should look at them attentively," he told CNBC.
"But I think it would be a huge mistake and it would be very bad for the euro zone if now we give the idea that because there is a political change in one of our member countries all the rules are put in question."
"The best we can hope from today is an agreement to move forward on," Nick Malkoutzis, the Athens-based editor of economic and political analysis website Macropolis, told CNBC.
The most immediate question is whether Greece should agree to an extension of its current bailout conditions (the favored position of the EU) or be given a bridging loan until the end of May, to give it time to renegotiate the bailout.
"For the man in the street, he wouldn't be able to put a figure on the primary surplus, but he would like to see some kind of concessions from where we are," Malkoutzis said.