Buoyed by conquest and plunder, Akbar and his advisers built a centralizing administration capable of steady expansion as new provinces were added to the empire. The Mughal nobility became and remained a heterogeneous body of free men who rose as their talents and the emperor's favor permitted. Each mansabdar was free to recruit men of own ethnicity and religion. Apart from kinsmen, each commander found experienced and proficient troops, whether mounted or foot, available for hire in any sizable town or city. All central troops received cash salaries direct from the treasury. Finally, the auditor general commanded a body of auditors who continually monitored and reviewed the records of fiscal transactions. In 1584 Akbar ordered a new coinage to reflect the ideological and political changes underway in his reign. Akbar, the epicenter, actively absorbed reports and issued orders on a daily basis. The Timurid Empire was both centralized and decentralized, both bureaucratic and patrimonial in its structure and operation.