The LA Rams may not be in a position of need at the defensive back position. That should not prevent them from selecting one in the 2020 NFL Draft, particularly if a highly regarded player drops far below where the team has him graded. In fact, that same rule of “best player available” should apply throughout the entire draft. When a team can select the best talent from the draft, ultimately the overall talent level on the team rises.
Unfortunately, NFL scouting departments make mistakes, and position coaches weigh in quite frequently to direct the aim of the scouts towards positions of need.