Week 4 "Note Card"

In reading chapter 8 in Silverblatt, I began to think about the concepts of subplot and implicit content. I've seen countless terrible "B" movies on the SyFy channel as well as other types of programs that attempt to create subplots and have implicit functions in their characters but fail to truly impact the viewer due to lack of depth or pointlessness of the element at hand. Is a true subplot or implicit action something that truly delivers and/or suprises the viewer, or can it be weak and predictable and just a poor example of the element?