Please bring back the ability to face anyone in your league.
WHAT HAPPENED?
WHY?
The leagues were designed to put everyone on the same footing... right now i'm in the Gold and everyone should have the same limitations of the max level of our cards as I do... why should it matter that someone at the top of the league goes against someone at the bottom... has anyone ever watched sports? You do well and you win the privilege of having that exact thing happen and if the underdog wins then it's BIG news and well rewarded at least in publicity.
Right now this system does not allow for people to easily move into groups of competency by facilitating movement this is the opposite and i think it was because people just needed to be educated... just because you're facing someone at a higher rank doesn't necessarily mean they have higher privilege than you and you should be coddled and protected to not face someone potentially more skilled than you.
THE CASE FOR LOWER IN THE LEAGUE
In fact a lower level player (same league) should be BEGGING to play someone higher ranked than them. Because it's a win / win for them. If they loose they barely loose any points... they win they go up TONS in points.
THE CASE FOR DIVERSITY
Right now it's the same people fighting eachother beating eachother down and perhaps no one going anywhere... I'm playing the same people over and over ... it makes me want to stop for a couple hours and come back when new people are playing otherwise I know exactly what will happen I'll play the same 2-3 people who have the same scores and maybe I'll have a decent winning percentage but it won't matter I'll stay stagnant in my score.
And now everyone ahead of me is stuck with their people which i guess is cool for the people that made it to diamond and champion before the switch... i was moving right ahead in that direction actually incredibly fast (as is the presumption of the champions and diamonds) and now there's a wall.
The case of 
And this is evidenced not just by me but look at
He's playing the same people as me... we're all just beating eachother down and keeping ourselves locked in the same grouping there is no fluid mobility up or down... it's a slow growth or slow fall. Those on top will just stay on top based on the virtue of being there... not because they're the most skilled. I want to see champions or diamonds fall hard and rise fast based on skill compared to their WHOLE LEAGUE not just because they happen to be better than the 4-5 people they get paired against.
The case of 
Look at this guy who plays 16 games and wins 10 of them while playing me 4 times and even beating me 3 of them... and yet goes up 40?
RECAP
This needs to stop and go back to the old system...
please feel free to describe your complaints with the old system because I just don't understand them I feel like 
I'm open to hearing them... they better be dang good because the problems the new system brought I can't think can be beaten.