Question:
First, they should provide strategic advice to management in order to help maximize shareholder value.

Does it follow that "Shareholder value can be maximized if they give strategic advice to management."?
Answer:
yes

Question:
She orders the top eye-shade to run the company as a partnership with her, just as he did with Phil, even though she doesn't really grasp business.

Does it follow that "Even though she doesn't understand business, she gets the leading eye-shade to run the company with her."?
Answer:
yes

Question:
He doesn't want a powerful civilian ready to face up to him all the time.

Does it follow that "He wants powerful civilians to be able to face him."?
Answer:
no

Question:
But it isn't.

Does it follow that "It isn't, though."?
Answer:
yes