Define the role of the board of directors is vital in the strategic management process

Then, look up the board of directors at Walmart. Inc., Apple Inc. and General Motors Company.

Which of them seems to have the board members that were chosen more for their expertise in the company's field and which one had one was had board members who were chosen simply for influence?

How does this correlate with the definition of the role of the board of directors with regard to strategy?

What do you think of these boards now?