IanTyger:
The CIA is an intelligence agency that should remain non-political in it's gathering and reporting of data to the appropriate leadership. "Removing" advisors and consultants within the agency with many years experience says that the situation within the government is becoming unhinged and the advisors have lost confidence in how their work is used.
Thus, we lose competence by the loss of the operatives over political issues. You are correct in asserting that it is necessary to have a CIA that has no voice outside of "the corridors of power" but you are incorrect if you assert that intelligence in this administration has been or will be used properly. The President does what he does by "gut instinct" not intelligence.
It's surprising, therefore, this hasn't happened before now.