"Becoming a manager from an individual contributor means almost becoming a new person with a shift in thinking as well as skills and viewing oneself in a completely new way" - Would you agree with the...

"Becoming a manager from an individual contributor means almost becoming a new person with a shift in thinking as well as skills and viewing oneself in a completely new way" - Would you agree with the statement, and why? Please discuss the above statement so as to explain your evaluation or reflection of the leap or transformation that an individual contributor in an organization goes through, both from the skill and thinking perspectives. towards becoming a new manager.