Development & progress, all facets, just wasn't there. Injuries, major problem,
but went beyond that. You have a blind spot a mile wide on this subject. Re; current era, I don't know anybody not rooting all-in for TH, and I hope I'm wrong re; TH not being a viable, full-time #2.
I think he'd be scary, w/ a long career as a Hernandez type TE, but the transition time is probably past. I wish NO wouldn't have transitioned and used him as they are, because nothing in the way NO plays TH says he's their #2.