The NFL is a mismatch league, and opposing coaches will expose any area of weakness. Free-agent and draft additions can only rectify so much. Weaknesses can still be found on each and every roster as red flags for opponents to attack.
Not every potential problem is glaring, but certain sore spots still exist. As such, specific positions can be identified that could continue to be a thorn in each team's side during the 2020 campaign.
These roster deficiencies are a byproduct of issues found within the squad's personnel.
Some may be gaping holes where a lack of talent exists.