But the Bay of Pigs wasn't a coup; it was an invasion and attempted overthrow from the outside, if I'm not mistaken. CIA handled successful coups in other Latin American countries (Guatemala and Chile are the two come come to mind; don't know if there are others). I can't imagine that the CIA would attempt a coup in a NATO country. But even if they did they would surely have the presence of mind to arrest the president and take over the media, no? Those are the two most important things that didn't happen in Turkey.
Not sure what the USSR connection is. That most certainly wasn't a CIA operation. That resulted from the military viewing Gorbachev as too friendly to the west. Glasnost wasn't high on the Soviet military's to-do list, and for good reason (from their perspective). My guess is that no one was really held to account, because a) Russia was so chaotic immediately after the collapse, and b) this left the military leaders as power brokers. I think this position is supported by the result that many of the former Soviet military leadership became very rich in the 1990s when the new oligarch class rose.