Mock drafts serve two primary purposes: they serve as an exercise to learn about both the draft process as it shapes up that offseason and the prospects themselves relative to the needs of the teams; they also serve as prime clickbait material, especially if you throw a lot of crazy things into the mix.
The latest mock draft from Pro Football Focus may have a bit more of the latter than the former, as Austin Gayle has not one, not two, but three teams trading out of the first round in order to acquire established franchise quarterbacks, including the Pittsburgh Steelers, who deal out with the Las Vegas Raiders to acquire quarterback Derek Carr.