I'd gladly welcome him back to the Canucks. It was time to move on back then, but the whole roster has turned over and he's a great coach.
He has some certain idiosyncrasies (like any coach) but i can live with those when it comes to a coach who can get a lot out of an okay roster, and even more out of a really good one.
I also don't really buy this idea that he can't develop any talent. He might not be the first choice i'd have to an extremely green, rookie-laden roster. But plenty of players have taken major steps in their development under AV. That might be a little bit later than their teenage years or whatever, but the players that he does develop...end up playing the right way long-term.
The one real notable thing about AV for me, is that his system is a bit funky. A lot of coaches systems look pretty interchangeable, and often seem to function that way. AV's system can take a while to install and it really does favour certain types of players and seriously challenges others. I think it's enough of a factor to keep in mind your roster composition and the types of players if you were to consider hiring AV. You want to have a healthy contingent of players who are keen and able to play to, and execute a system. He's only ever got room for a few real "freelancers" in his lineup.
With the way he coaches a team to play...it can be a real jenga stack. When everyone is doing their job and the whole machine is working, it's some of the most aesthetically pleasing hockey out there imo. But once you get a few guys freelancing, or a few boneheads who just don't seem to understand their role...it can fall apart in a catastrophic way.
It's weird to me, to see people attribute to AV a lot of the flaws that actually apply to the beloved John Tortorella. To me, they're radically different coaches and seem likely wildly different people.
But i'd hire to coach any team i ran. Easily.