Need to know

Are agencies and businesses getting too large to properly manage? The CIA director just admitted he was unaware that his agency was spying on senators. The head of the IRS was unaware that her agency was discriminating against certain groups. The CEO of General Motors was unaware that cars were unsafe. Former Secretary of State Clinton said she was unaware of the safety concerns in Benghazi. President Obama said he found out in the news about the problems with moving guns to Mexico and problems at the border. Instead of being too large have these entities created a culture where underlings keep problems from the top people. It has long been known that there is something called plausible deniability that surrounds any president. Has this idea spread to lower level people?