I don't understand why you are being downvoted for this. A decent number of military analysist and Turkish civilians have come to this conclusion.
-No government buildings were seized, only bridges and airports.
-Normally within the first 30 minutes of a coup a Turkish Military General was on TV directly addressing civilians as to why this had taken place, and what was going to happen.
-The past 5 coups took place in <2 hours.
-The Turkish Air Force established air superiority over Istanbul but never shot down the president's plane.
-Turkish troops weren't equip for crowd control, or even for fighting most were lacking body armor and helmets.
-Turkish troops didn't set up fire-hoses, or wear riot gear for crowd control like previous coups.
-More Judges have been fired from their posts in Turkey then Military Officers post coup.
-Most military units blatantly weren't involved. In the coup or even scrambled to defend against it.
Turkey has had 5 successful coups in the past 100 years why did this one differ so extremely from the previous ones?
Incompetence is a simple defense, but this is a NATO trained and drilled military. Officers education requires they be able to switch between nations, and officer sharing programs are common. Saying the Turkish military is incompetent is really damning to the whole of NATO, and it's attempts to standardize education/training across member nations.