Any mock draft needs to establish ground rules. Is this a predictive mock? Based on insider information? What the author would do themselves if they were installed as the general manager of all 32 teams?
This mock is a mixture of each approach. It is largely informed by my own evaluation of draft prospects (some consensus first-rounders fall out of the first round largely because I am lower on them), but there are instances where I defer to how I think teams would behave based on the rest of the mock to that point.