Her mishandling was a result of a number of factors, renaming the ship not being one of them. Russia has no tradition of or experience with sustained operations at sea. Numerous short forays at sea, but not sustained operations. So resilience and endurance were inadequate, as were the resupply and support ships. Next was the total lack of a clearly defined mission for the ship. No operational doctrine. She was purely a political symbol in search of a mission, nothing more. So, once the Cold War ended, the political will to fully support her was lacking. And finally, the physical infrastructure to maintain the ship was insufficient, especially after they lost the Crimean shipyard where she was built. True, they have regained (illegally) control of the yard, but it is in a war zone and lacks a safe and continuous source of the materials needed to support the ship there. (Quite aside from the target she would become in that yard.)