What's the difference between Ali's straight pipe and outsourcing?

Zhiguan is a talent reserve company opened by Ali's partner for Ali. It is said that the probability of becoming a full member is greater than that of outsourcing. Direct management is generally led directly by Ali's internal personnel, and no one will take care of it, which is better than outsourcing. The salary and promotion of the direct management are discussed with Ali's hr, which is what I am asking at present. Promotion opportunity once a year, performance appraisal once every six months.

Alibaba:

Alibaba Group Holding Co., Ltd. (Alibaba Group for short) was founded in Hangzhou, Zhejiang Province on 18 on 1999. Alibaba Group operates a number of businesses, and also obtains the support of operating business ecosystem from the businesses and services of affiliated companies. Business and affiliated companies include: Taobao, Tmall, Juhua, AliExpress, Alibaba International Trading Market, 1688, Ali Mama, Alibaba Cloud, Ant Financial, Cainiao.com, etc.