How about this for reality, commando? While you're being sucked in by agent PR, there are hundreds, possibly thousands of fullbacks just as good, or better, than McKenzie not only on this continent, but in a world that plays the beautiful game. Most of whom, for the most part, can be had for less.
Speaks more to the failings of our scouting rather than the ability of players and their agents.
But McKenzie is OK and will probably fit in. I don't think he's the savior of the backfield you think he is. And as far as Yanks go, I'd prefer to see a homegrown player like Cameron Harper excel and play for years with the Hoops as opposed to someone who will be a footnote or a trivia question years from now.