Mohan a manager expects colleagues to get work out of subordinates without giving them any powers. which principle of management is being overlooked and why??

Dear Student,
Answer to your question is as follows :

Centralisation
As Fayol defined centralization as
the means of reducing the importance of subordinate’s role in the organization,
and the extent to which the authority is centralized or decentralized depends on the organization's type in which the manager is working.

Regards