5. P.J. Walker, QB
Here's the first and biggest surprise. The preseason has told us one thing about P.J. Walker: he's not good. That's it. Walker does not look capable of being the backup quarterback to Justin Fields, as the Bears thought they were getting.
Instead, veteran Nathan Peterman could replace him in that spot, or it could be the undrafted rookie Tyson Bagent that steps in and steals the job. Bagent has performed very well throughout the preseason and brings a ton of experience with him out of college. Walker doesn't look the part, and thus he should be cut.
6. Kindle Vildor, CB
What a fall for Kindle Vildor in just a year. Now, to be fair, the Bears did address the cornerback position in a big way this past offseason. They're going to keep Jaylon Johnson, rookies Tyrique Stevenson and Terell Smith, along with veterans Kyler Gordon and Josh Blackwell; at least that's my prediction right now.
Vildor has fallen far down the depth chart, and might not even beat out Greg Stroman Jr. or Michael Ojemudia for a final spot on the roster. Vildor may be a practice squad candidate, but something tells me he'll get claimed by another team before the Bears have that opportunity.