5. Justin Coleman
Justin Coleman is not a known commodity in the NFL, but he can hold down the slot as well as any cornerback, and that includes Bryce Callahan. Coleman was excellent in 2017, and while he was not as strong in 2018, he is going to be one of the more prized free agents at the position.
A lot of Colemans issues came down to tackling, and while he was equally as strong as Bryce Callahan in coverage, his yards after the catch and run defense was not quite as impressive.
Coleman is going to enter the offseason at 25 years old and has two seasons of starter experience in the slot. He has held down the spot well and while he does not completely stack up with Callahan statistically, his age and size give him an upside advantage that Callahan does not have.
While he may not see a similar contract to Callahan on an open market the Chicago Bears could get younger and find cheaper, but similar production in Justin Coleman.