I'm completely fine with keeping Yak and seeing if he can finally establish himself. I think Hall getting shipped out could be big for him in a number of ways - both increased opportunity and a better locker room environment. I'm not trying to make Hall sound like Evander Kane, but one of Andrew Ference's first criticisms of the team was how the locker room operated - there were cliques as opposed to a team concept. Taylor Hall was very much an Alpha dog and Nail Yakupov was the runt of the litter, a Russian Muslim trying to fit in with the Western Canadian kids. It was evident after watching Oilers TV specials like "how well do you know your teammate" and Hall, Ebs, Nuge and Schultz were all clearly good buddies, but when it came to Yak, they didn't know a single thing about him.
I know this is a long winded diatribe to come to this conclusion, but I think Yak puts up 25 goals next year playing with Drai and Pouliot. Nobody will benefit more from the change in culture. Trading Hall was the change in scenery Yak needed.
Now whether he can ever learn to even be average defensively is another question entirely.