Marcellus sat at his desk. He had just awoken from another dream about his past life. While his household was getting accustomed to its new members. The man had locked himself away in his office. His purpose was to design a new communication system.
One of the flaws that his empire had was a complete and utter lack of fast communication. This meant that when a border region was attacked, it could very well be weeks before he became aware of it. In these cases, by the time he responded, the barbarians would already have caused massive damage to the region.
In his dream he had witnessed his history professor speak about the pony express. A form of communication that was established in the 1800s in America to allow for rapid transit of communications.