What does Sun Tzu have to do with Skyrim?
Sun Tzu? he said Tsun, the Nordic God of trials against advesity and Shield-Thane of Shor, the Nordic version of the God Lorkhan (the one who Talos took the place) who tricket the divines into creating Mundus and then was killed by them and his body separated in two parts, the two moons of Tamriel

In fairness to the greaves and armour being combined, it was for technical reasons. It was so more NPCs could be on screen at once.
if Beth had created a new engine instead of recycled the same one since Morrowind we would be able to have much more NPCs on screen that we currently can in Skyrim and with even more separated pieces of equipment if beth wanted qq-