Is there any credibility at all in General Patreaus regarding iraq.?

In the recent news there have been many headlines that a military general named Patreaus, will give a report to congress next week regarding the current condition and progress of war in Iraq. The problem is that so far all essments about iraq and how the war is going, has been made by Bush administration itself or the military generals who aren't retired. That is a clear conflict of interest because unretired military generals cannot speak against war since Bush is commander in chief. Shouldn't essments and war situation reports in Iraq be provided by a NON-PARTISAN and NEUTRAL agency which has no affiliation to Bush or military? I seriously doubt credibility of such generals and the Bush administration regarding iraq because they are all for war. What do you think -- should a non-political, non-military organization ess iraq situation or would you believe word per word what aides of Bush and military generals speak?