I wonder how much of it would be about depth. This is a deep WR and TE class, less so at OT. So get the tackle early and still upgrade at WR later (and let’s face it, it’s not exactly difficult to upgrade this WR corps. There’s also no guarantee that they will draft OT early, just that they’ve worked out a couple of linemen that are likely to go in the first two rounds. Doesn’t mean they’ll draft them.