That's the question that one must ask after reading this report from the Atlantic's Max Fisher:
The White House has withheld a key report, which maps out a strategy for fixing the troubled Director of National Intelligence, from the Office of the Director of National Intelligence. The classified report, "Study of the Mission, Size, and Function of the Office of the Director of National Intelligence," was completed by the Presidential Intelligence Advisory Board (PIAB) at least as early as March, several weeks before President Obama asked DNI Dennis Blair to resign. The report came at an inopportune time for the White House, which has pursued a policy course counter to the report's advice.
Multiple sources within the Office of the Director of National Intelligence tell The Atlantic that the office, which employs about 1,500 people including the director himself, never received the report. The White House would not comment on how it was distributed, but Assistant Press Secretary Tommy Vietor said, "The study you reference was shared with DNI Blair, who provided us comments on the findings." However, the findings are only a brief summary of the report's unclassified sections; they are also freely available on Politico's website. The full report, which is classified, has not been shared.
Why else would the White House withhold such a report, unless the Obama administration wanted to push Blair out?