Final answer:
The tendency for new managers like Valgeet to forget some of the basic job skills after being promoted is referred to as promotion amnesia, a type of memory interference that can result from lack of use.
Step-by-step explanation:
The phenomenon where an individual, such as Valgeet, forgets some of the basic job skills after being promoted to a management position is known as promotion amnesia. This can happen when individuals no longer need to engage in certain tasks they used to perform, leading to a decline in those specific skillsets due to lack of use, a concept related to the principle of use it or lose it. Memory can be quite fallible, with forgetting sometimes occurring as a result of amnesia, encoding failure, or because information has succumbed to interference, whether proactive or retroactive. Additionally, certain strategies can help combat memory decline, such as the use of mnemonic devices, rehearsal, self-referencing, and adequate sleep.