As a marcom manager, what do you think are the top three challenges for employing buzz marketing? Is it different for different brands and/or product categories?

As a marcom manager, what do you think are the top three challenges for employing buzz marketing? Is it different for different brands and/or product categories? This is online discussion. Please write two pages response to the topic question. The question is / As a marcom manager, what do you think are the top three challenges for employing buzz marketing? Is it different for different brands and/or product categories? The related important documents are uploaded : 1) Powerpoint slide for chapter 8 and 12. and 2) three supplementary readings