If I understand correctly, you’re asking why “I have a lot of great skills that would really help your company be successful” is ineffective. If that’s correct, it is because he does not list or name any of this skills therefore, the statement is ineffective.
Answer:
You use who when you are talking about the person that is doing something. You use whom when talking about the person that is receiving an action.
Explanation:
Who is used as a subject. Ex: <u>Who</u> wants to go to the party?
Whom is used as the object. Ex: I don't know with <u>whom </u>I will go to the party.
Answer:
Chronological Order.
Explanation:
Its a biography. Nobody will understand it if its not in order.
Hope this helped~! Good luck!