I suppose this depends on the specific business environment, but in my experience:
a. I'm one of John's direct reports.
means John is my immediate higher level boss, and directly responsible for your performance and work direction.
b. I'm one of John's subordinates.
means your position (say on an organizational chart) is below John. But it could be more than one level below John, and you might report directly to someone else.
The correct expression is 'She is the same age as me.' To say 'the same age with me' will certainly raise quite a few eyebrows among native speakers. 'As' is the conjunction you need to use to indicate the comparison. Actually, to be a stickler, the most correct way to express your sentence would be 'She is the same age as I AM'.
Best Answer
Which one is grammatically correct? Both.
However, the former one seems to be common in use.
Just my opinion:
If things happen to you, you are a bit passive.