Discuss 2 ways to enhance the effectiveness of governance mechanism

Project description
1: Watch the video First, and read the ppt and textbook Chapter 10, then answer the question below.
1.A CEO of Enron is responsible for Enron’s scandal. Discuss motivation(s) of the CEO’s engagement in earning manipulation based on ‘Agency relationship (p.299)’

2.To prevent this happening again, firms can increase their effectiveness of governance mechanism. Discuss 2 ways to enhance the effectiveness of governance mechanism. Your answer should be related to Enron’s scandal.
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Added on 28.10.2015 20:34
http://documentaryaddict.com/enron_the_smartest_guys_in_the_room-766-doc.html this is video link
https://www.dropbox.com/s/odkzhefz2qjs9e8/Strategic%2BManagement%2BConcepts%2Band%2BCases%2B….pdf?dl=0 this is textbook link