Alibaba taps Jeff Zhang to oversee consolidated retail division

Alibaba Group Holding Ltd appointed Jeff Zhang to oversee its main services on Monday, bringing Taobao, Tmall and Juhuasuan into a newly created "China Retail Marketplaces" division. The company, which now handles more ecommerce than Amazon.com and eBay Inc combined, has been struggling to sustain the rip-roaring pace of growth it enjoyed in past years as it gains scale. It's unclear how Zhang's appointment affected Yilei Wang, who was President of the Amazon.com-like Tmall r