if they are saying too big I think that be more muscle bound than his actual size, the deal with DK is agility, that us what is questioned, his poor agility performances at the combine
From that point on though, Metcalf would struggle. In his three-cone drill, he ran 7.38s. In his short-shuttle, he posted 4.50s. Both of these were worrisome, as they were good for just the 2nd and 3rd percentile among wide receivers.
The slower times have raised some concerns about his lack of flexibility, or “stiffness.” Since he was widely used as a vertical wide receiver at Ole Miss, the perception is because he lacked the hip flexibility necessary for a full route tree.
https://thedraftnetwork.com/articles/ar ... -a-concern