One of the newsroom’s big challenges is keeping track of all the comings and goings in the local business community. This week’s stories show a bit of our work in tracking the various kinds of comings and goings, and to explain what it all means. We have an effort to attract the world’s biggest show to Kansas City, the ending of the Border War (we hope), a longtime area business saying goodbye to a big piece of its history, horse-trading of talent in the banking industry and a couple of stories…