Playing styles. A huge X receiver is what he was at Florida. Not much true te to his game right now because he wasn’t asked to do so. Whoever drafts him likely won’t be asking him to do that either. atleast not early.
It's a tough comparison because Brevin played more inline TE than Pitts did in his career. I see Pitts more like Larry Fitzgerald who occasionally got in a 3 point stance.
/Not saying he's a HOF....