For the sake of argument, I think a case can be made:
1.) Edrogan has been wanting to expand his constitutional powers - this gives him the perfect opportunity to do so.
2.) It gives Edrogan an excuse to restructure a highly secular military
3.) The Coup didn't even try to capture Edrogan or his senior staff
4.) The Coup failed to take control of the media
5.) The Coup didn't have a message to put out or a leader to rally the support of the country
6.) No high ranking military members knew about the Coup and no one attempted to bring them or any senior staff in on it once the Coup unfolded
7.) The Coup failed to consolidate any ground and had no where near the necessary man power to hold bridges or the airport
8.) There were far more high value targets they should have taken control of over bridges and the airport (police stations, power stations, transportation hubs, military air fields, etc)
9.) The Coup failed to give it's soldiers the necessary tools to deal with protesters (shields, batons, tear gas, loud horns, etc.)
10.) There was not a single aspect of the Coup that showed any plan for a successful takeover. It's almost like it planned to fail . . . weird