Complex sentence: Cities around the country bid to host each year's championship game and the playoff group's leaders make a selection from those proposals, in a similar fashion to other large sporting events, such as the Super Bowl or NCAA Final Four.
Split into simpler sentences: Cities around the country bid to host each year's championship game. The playoff group's leaders make a selection from those proposals, in a similar fashion to other large sporting events, such as the Super Bowl or NCAA Final Four.