One thing I've noticed about League's players is they are good at the champs they play but
severely lack game sense, objectives, farming, pressure, etc.
I've been playing League since Season 1 and During season 1-4 people didn't play all too well. Even if someone mained a champion, they'd play the champ sub par.
But I noticed people in bronze-plat play their champion pretty well (can do all the combos, max damage) but they don't adjust based on what's happening in the game. So if the are 5-0, they will just constantly pressure and go in. 0-4? Well, they'll do the same thing, keep going in and dying.
21-11? Let's keep going 3 for 3 mid lane and grouping mid instead of farming or doing 1 3 1 or 1 4 and getting objectives. Nope, just group for ARAM.