A tricky start. This is the thread uniting such different leaders as the ones chosen for this month’s Talking Heads section. In the cases of Dilma Rousseff and Alassane Ouattara, the starts of their mandates as presidents of Brazil and Côte d’Ivoire certainly have been – or rather, should be as far as the latter is concerned. French President Nicolas Sarkozy and Hungarian Prime Minister Viktor Orban, on the other hand, share ­­the challenges of taking over “heavy” rotating presidencies.