IF I had to guess, I think they made the draft classes with being able to edit all positions in mind. Like that slow as molasses receiver has more TE like stats. But since they limited the position changes so much it kills the point of having some rating that are completely off for a lot of drafted players. That's just my guess. Also adding in the ability to edit build or at least change weight would help with realism with some of those really wonky drafted player sizes.
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