There are a few dark horse like Arizona, Baltimore, New England, Pittsburgh, Miami who given an opportunity will jump between that 5-12 to get one of these four QBs. The Bills would be foolish if they stood at 12 or 21 for their QB unless they are happy with a Mason Rudolph or Lamar Jackson.
This is going to be one of the most anticipated draft as there is likely hood of 6 QBs going in the top 15 if these teams have their way!