The awesome funeral

One day all the employees of a very unusual company reached their office and all saw a big sign on the main door which said this . .

'Yesterday, the person who has been hindering your growth in this company passed away. We invite you to join the funeral in the room that has been prepared in the gym.'

In the beginning, they all got sad for the death of one of their colleagues, but after a while they started getting curious to know who was that person who hindered the growth of their colleagues and the company itself?