Industry analysts say former Renault executive Carlos Tavares, who will succeed Philippe Varin as PSA/Peugeot Citroen CEO on March 31, is the right man to lead the automaker — at the right time.Tavares, 55, will take on the CEO role just a couple of days after the French carmaker, China’s Dongfeng Motor Co. and the French government are expected to sign a 3-billion-euro ($4.1 billion) capital tie-up negotiated by Varin.