Turner is interesting. He hardly plays for his club side which is interesting because Crystal Palace has been awful t start the PL season. You have to think it's because PL teams want Neuer types back there. The world of goalkeeping has changed in soccer in the last 20 years where teams wanted shot stoppers first and everything else came second. Neuer really changed that dynamic and now everyone wants a sweeper keeper and someone you cna use as a 4th or 5th defender to keep possession and build out of the back. Outside of the very basic and rudimentary passes, Turner is not very good at that part of the game for a keeper at this level. Steffen is not good at it, Sean Johnson is not good at it and I haven't seen enough of Horvath to know if he's any good at it or not. Schulte, IMO is the best in the pool right now from the little that I've seen. But Turner is the best shot stopper in the group, IMO.
That said, Mexico ran Memo out there for 15 years and he is terrible with his feet. Jorge Campos he was not.
As for McKennie, I think Poch knows what he has in McKennie so no need to run him out there in garbage games this cycle. I think he knows what he has with a lot of the main line starters. He needs to find the next line of players...the role players and subs and the guys you might insert because they give you a matchup edge against certain squads. His biggest thing will be working in guys like Weah, Adams, and Dest when they return from injury and where do they fit in his preferred formation and style.
BTW, I think this game highlighted where Brendan Aaronson fits best and the style that best suits his game. He is that high energy gnat that pisses off backlines when they're trying to control the ball. He was a perfect fit at Leeds and that style and he was effective at it...problem at Leeds was their backline was so horrendous that you couldn't really afford to high press as much as they did.