Matt Waldman shares his NFL Draft scouting report on Los Angeles Chargers rookie Joshua Kelley from his 2020 Rookie Scouting Portfolio publication.  Joshua Kelley, UCLA (5-10, 212) Depth of Talent Score: 81.8 = Rotational Starter: Executes at a starter level in a role that plays to their strengths. Kelley is one of the most underrated…