Jordan Reed and Evan Engram are both 6’2”- 6’3” both have about 10- 15 lbs on Duke tho. 10 lbs isn’t very difficult to gain.
With the way TEs are used out wide now size isn’t as much of an issue as it was when they were blocking DEs all day.
If Duke can handle the responsibilities the TEs have then he could play TE. Size doesn’t mean much, it’s either you can do it or not.
I dont know if duke can can and I think we have good enough TEs now so I wouldn’t move him there but just saying he’s too small is weak