I'm not saying we're looking at the next Waller here or anything (and his issues were substance abuse related on top of learning a new but related position, obviously), but if there's one position that is known for random late-career breakouts it's TE. It's not impossible, so worth keeping an eye on in off-season bidding where he'll be free like Waller was early on.
The thing is this: if they don't trade down and they just take Young at #2 like predicted, Washington doesn't pick again until the 3rd round #66. This is a pretty weak TE class and the few intriguing guys like Trautman and Kmet could very well go in the 2nd due to the dearth of talent. Meaning a TE is unlikely to be the BPA for WAS at any point before the 4th-6th rounds.
The new staff brought Thomas in. The incumbent now that Reed and VD are gone is Sprinkle, who sucks out loud. Hentges is a guy with potential who they stole from the Colts last season to the slight dismay of some Colts fans, but he's really shown very little so far.
The TE position is important in the Turner offense and they will give anyone the chance to win the starting spot, that's Rivera's whole thing. If they don't trade for someone like Njoku (unlikely) or Everett (slightly less unlikely imo but still unlikely), it will probably just be Thomas and a bunch of camp body types.
All that to say that this could be a weird situation where opportunity is enough to get a guy who has flashed startable targets.