Should an appellate court automatically presume that a within - or below guideline sentence is substantively reasonable when the underlying rationale for the presumption set forth in Rita v. United States , 551 U.S. 338 (2007) —that the district court and United States Sentencing Commission are in agreement as to the reasonableness of a s entence —does not exist in a particular case?

Should an appellate court automatically presume that a within-or-below-guideline sentence is substantively reasonable when the underlying rationale for the presumption set forth in Rita v. United States, 551 U.S. 338 (2007)—that the district court and United States Sentencing Commission are in agreement as to the reasonableness of a sentence—does not exist in a particular case?