What were the new administrative arrangements during this period?

Some significant administrative positions were now hereditary.

This suggests that sons ascended to these positions after their dads.

For example, like his father, the poet Harishena was a maha-danda-nayaka, or chief judicial official.

Occasionally, a single individual held many positions.

Hence, the new administrative arrangements during this period include significant administrative positions, positions to sons after their dads, and holding multiple positions, etc.