New ranking system is completly broken. Riot you have made it near imposible to advance and a player can only decline in brakets because of the amount trolls and feeders in this game. GG Riot. You have destroyed ranked play. Points should not be based off your teams win or lose. It should be based on the individual players KDA.
Dominion point system is more viable here. For every division you have to reach a certain amount of points(either harder to gain points or require more points in higher divisions) to rank up. Not based on kills or wins but what you did.
It should be improved to meet the demands of a proper rank system, ex: If you heal someone who isnt being damage, points earned should be less than when you heal someone who is being damaged, etc. This should encourage more team-like behavior.
If the kinks are worked out, then those who aren't displaying top quality game play would either stay in a certain division or if they perform bad(not gaining enough points), they get ranked down.