As you may recall, I used to be an OLC staff attorney many years ago.
Think of it this way:
An elite team of lawyers (OLC) practicing within a law firm (DOJ) is asked by the General Counsel (the White House Counsel) of client BushCo., Inc. (the White House) to prepare a legal memoranda on a topic relevant to BushCo's Foreign Division (DOD). The elite legal team prepares the legal memo such that the legal conclusions are exactly what the client (BushCo) wants to hear. BushCo's General Counsel (if he concurs) probably forwards the legal memo to the head of BushCo's Foreign Division (Rumsfeld). The Foreign Division takes action in reliance on this legal memo (torturing Abu Ghraib prisoners). The press gets hold of the story, publishes a leaked copy of the otherwise confidential legal memo and the ensuing public outcry hurts BushCo's profits (negatively affects the President's standing in the polls). Embarrassed, the General Counsel for BushCo turns to the law firm and says "WTF"? The law firm and its elite legal team are red-faced. "Ooops. This legal memo contains faulty legal reasoning that we did not notice the first time through. Sorry for the oversight. We'll rewrite the memo, free of charge."
In the interim, the head lawyer on the elite legal team (Bybee) has been rewarded with an appointment to the federal bench. He's home free with life tenure. The law firm's elite legal team can badmouth him all they want in order to cover themselves because there will be no negative impact on Bybee's career.
An interesting aside: If OLC had written a memorandum-OPINION resolving a dispute between State and DOD regarding the proper interpretation of the War Crimes Act, I THINK (if I remember correctly off the top of my head) that OLC memorandum-opinion would be BINDING on the Executive Branch. Such memoranda-opinions are comparable to judicial opinions -- but limited in applicability to the Executive Branch. OLC would have had to overrule itself, rather than simply rewrite a badly-reasoned legal memorandum.
Of course, the Bybee memorandum at issue here was apparently written in response to a request from the White House Counsel. And who knows what may have prompted Gonzales to ask for such advice? I can't figure out yet whether there might have been a strategic reason for having Gonzales request the MEMORANDUM, v. having Rumsfeld/Powell request a legal dispute resolution OLC OPINION -- unless, of course, this was a deliberate attempt by neocons to shift the risk to Gonzales, who the neocons view as an unacceptable US Supreme Court candidate compared to Solicitor General Ted Olsen.
Check out OLC website.
http://www.usdoj.gov/olc/opinions.htmGonzales, by the way, may have been unduly influenced by former Principal Deputy White House Counsel Timothy E. Flanigan (who left about 6 months after the Bybee memo was issued). Flanigan, who has strong ties to both Senator Hatch and Solicitor General Ted Olsen, headed OLC for a while during Bush I.