Being a good athlete doesn't necessarily make you a good football player, but it doesn't hurt.
Yeah DickRod had really slow 40 and I don't recall anything great about his numbers. IIRC it was a bad TE class most didn't care for the pick.
Sternberger had production but didn't test that great.

I think they've learned to draft high end athletes everywhere they can, which is why they didn't grab a safety yet.
One way you could describe this draft so far is speed -- they got faster.