Greece’s prime minister, Alexis Tsipras, has lined up a formidable coterie of academics, human rights advocates, mavericks and visionaries to participate in Europe’s first anti-austerity government. Displaying few signs of backing down from pledges to dismantle punitive belt-tightening measures at the heart of the debt-choked country’s international rescue programme, the leftwing radical put together a 40-strong cabinet clearly aimed at challenging Athens’ creditors.