How to fix Solo Q; Until it's totally destroyed in favor of team-based rank play.
Let's change how we queue up:
Pick your role. Pick your class. Pick your ideal teamcomp by class.
Ex: Bottom Marksman Bot - Marksman, Supp - Tank, Mid - Assassin, Top - Fighter, Jungle - Tank
You could do this for primary and secondary selections.
I believe this would help increase team synergy. It may make queue times a little longer, however, falling back to secondary or subbing out one position/class for another would be possibilities, like auto-fill.
It's far too often I see team's lose the game in champions select because they're not trying to synergize with their teammates/teamcomp or considering the enemy team's picks.
There's nothing being added to champ select here, its simply a better way to matchmake so you're not stick with Assassin Tryndamere Support and Mage Garen Mid.