I will be the first to admit, Prince Amukamara was not great. You know he would get flagged for a pass interference penalty at the worst of times. However, for the most part, Amukamara was a steady contributor for the Chicago Bears defense. Because of a salary cap issue, the Bears had to part ways with Amukamara this season.
On the current depth chart listed by ESPN, the starting cornerback opposite of Kyle Fuller is Buster Skrine. Skrine is basically their third corner who comes in on nickel packages, but it seems ESPN has moved him up to start as the left corner.