when joined company, you will observe, there are too many
dunnnig kruger sydrome ( effect) in company. It isn’t easy comunicate with them. 
It’s a concept propounded by psychologists David Dunning and Justin Kruger at Cornell University in 1999 to explain why some individuals suffer from “illusory superiority” and mistakenly assess their ability to be much higher than it really is. It’s called the Dunning-Kruger effect.