we have that, his name is Terry McLaurin. I don't think we've even been able to see his true abilities yet (which could be a factor in why he hasnt signed an extension BTW... it may not be the team draggin their feet), and we could see a further evolution of that part of his game with a bigger arm under center.
Dyami Brown had his fair share of free releases last year also that Heinicke never attempted a throw to.. That may be because he didn't see him, or he didn't have the arm to make the throw, but I wouldn't be surprised if we see that kind of a role carved out for Dyami this year either.
I'm not OPPOSED to getting more, speed, i'm not trying to debunk your comment... just saying we have weapons that can push the field on the roster. I always want to get faster, and i've circled Treylon Burks as my top guy on my wish list at 11. His 40 time doesn't tell the story of his ability as he was routinely running away from SEC defenders. If we draft him, I do hope we dont limit him because he's a big bodied guy and try to turn him into a TE lite...