What did the rulers of egypt accomplish during the middle kingdom

The answer is reunification under the Eleventh Dynasty after period of defragmentation did rulers of Egypt accomplish during the Middle Kingdom. When the Eleventh Dynasty reunified Egypt it had to create a central administration such as had not occurred in Egypt since the downfall of the Old Kingdom government. To do this, it chosen people to positions which had fallen out of use in the decentralized First Intermediate Period. Highest among these was the Vizier.