ATHENS, Greece ( AP) — The leaders of Greece’s two biggest parties are due to resume talks today to agree on who should be the country’s new prime minister, after reaching a historic power-sharing deal to push through a massive financial rescue deal and prevent imminent bankruptcy.

Europe’s markets and government, however, remained cautious that the power deal would resolve the country’s political turmoil and alleviate concerns over Greece’s membership of the euro.

Socialist Prime Minister George Papandreou and conservative leader Antonis Samaras are to hold fresh talks to hammer out the composition of the new 15-week government, which will be tasked with passing the (euro) 130 billion ($179 billion) package from the country’s international creditors before elections.

Former European Central Bank vice president Lucas Papademos is being tipped as the most likely new head of the government that would serve until a Feb. 19 general election.