Nissan Motor Co. said Wednesday a top executive who took his position in a leadership revamp this month will leave the company, throwing the automaker's efforts to move on from last year's arrest of former Chairman Carlos Ghosn into disarray.Nissan did not disclose the reasons for the departure of Jun Seki, who took the Japanese automaker's No. 3 post of vice-chief operating officer on Dec. 1 tasked with spearheading the implementation of its restructuring measures.It is widely believed the 58-year-old was in conflict with CEO Makoto Uchida, 53, over how to deal with Renault SA of France, N…READ FULL ARTICLE