What exactly does this 人单合一的自主经营体 mean? 女：海尔已经为应对金融危机做好了哪些准备？
男：海尔应对金融危机的具体思路主要是三个方面：一是产品创新，要为用户提供解决问题的方案；二是商业模式创新，要实施零库存下的即需即供；三是机制创新，要建立人单合一的自主经营体。

I'm struggling a bit with this last one, can you please help?

机制创新，要建立人单合一的自主经营体 (营体=运营体系？ 单=单位？？）

Mechanism?? innovation, must set up 人单 united 的 independent business system
According to here, it should be 三是机制创新，要建立人单合一的自主经营体。.

机制创新 : innovation of mechanism/system
人 : staff/employee
单(订单) : order -> user needs
人单合一 : integrating order with personnel -> Every order is in the charge of one staff. Futher more integrating staff with user, make staff to achieve self-worth by creating value for users.
自主 : autonomous/independent/self-determination/self-leading
经营体 : operation unit
自主经营体 : (to make every staff one) independent operation unit

For whole sentence,
Thirdly, mechanism innovation, set up independent operation unit, which integrating order with personnel.

Reference: 人单合一双赢模式