Yes. It was James Angleton’s idea.
In May 1963, deputy director Richard Helms asked Angleton, the legendary chief of the agency’s Counterintelligence Staff, to assess the problem of Cuba for the Joint Chiefs of Staff. Angleton wrote a 16-page working paper, “Cuban Control and Action Capabilities” that was so sensitive it would remain classified for the next 35 years.
Angleton’s conclusions were stark. Castro’s minions were marching into Latin America aided and abetted by their masters in Moscow, he said.