I Am An Entrepreneur. I Have Employed My Friend Thinking He Will Be A Good Support. However, It Turned Out That We Have Different Ideas And Working Style. How Do I End The Relationship Smoothly Without Hurting The Relationship?

He is very humble and nice. He helped me out during our college days. However, he is very lazy and laid back. He has no wish to work. He still does not expect to be suspended as he is my friend. Now that I have got smarter employees, I would like to replace the old ones who aren’t as good. How should I tell my friend that he has caused a lot of disruptions in the office and thus I cannot let him work here for much longer
Source: Today Deals