How does implementation differ for product implementation and process innovation?

How does implementation differ for product implementation and process innovation? Which of the four key issues do you believe is most affected? Explain.

Note:

Your initial post should be direct answer to the posted question(s), and must be a minimum of 250 words long and completely address the posted question(s). Additionally, it must include a minimum of two references included in APA format (6th ed.). Please avoid the use of Wikipedia, about.com, and other ‘crowd-sourced’ information.