Mentor就是你工作中可以帮你出出主意把把方向的人。可以有好几个。哪个部门都可以。关键要跟这个人click

You are willing to tell this person about the good， the bad and the ugly也比较trust他的judgement。

Mentor is overrated. Mentor不重要。更重要的sponsor。这个人是可以帮你说话推荐你去好的assignment,好的opportunity，提挈你的。是扶你上战马的人。推荐这本书。https://www.amazon.com/Forget-Mentor-Find-Sponsor-Fast-Track/dp/1422187160

Supply Chain到Finance,the easiest/obvious is cost savings. Beyond that you can also bring value by ensuring supplier quality, minimizing  supplier risk, managing demand/inventory level, etc.