Java Server Faces Question:

JSP is good for mixing static content and dynamic content pulled from resources made available by other parts of the application; for instance, a servlet.
JSP's main mission in life is to generate a response to a request; a JSP page is processed in one pass from top to bottom, with JSP action elements processed in the order in which they appear in the page.
However, JSF has a much more complex lifecycle.
JSF components get created, process their input (if any), and then render themselves.
For JSF to work well, these three things must happen separately in a well-defined order, but when JSF is used with JSP, they don't.
Instead, the component creation and rendering happens in parallel, causing all kinds of problems.