I know the odds of DE Tyree Wilson available at 9 are slim but to trade down to 13 and still get him is now unrealistic.
Getting 3 athletic giants in DE Wilson 6-5" 271, DE White 6-4" 285, and DT Smith 6-3" 323 would give the Bears some monsters to help keep the back 7 clean. Then add Pickens 6-3 291.