Ranking players for Dynasty Leagues is a dubious endeavor. Dynasty rankings differ vastly from the typical redraft dreck. It’s an inexact science, as the ranker must account for projected longevity and situation. Predicting a player’s future circumstance can be a fool’s errand. You can look to contract length, but NFL contracts are not guaranteed, which doesn’t account for trades. Guessing where a player will go in free agency is just as imprecise. Who knows which team a player signs with two to three years from now? I elected to focus attention on longevity, as I believe it to be a more stable metric to project.