When the season starts everyone's MMR gets pulled in towards the average, and you play 10 matches to get yourself assigned.
This means though that all the challenger, diamond, gold etc players have all been pulled down to artificially low MMR.
Myself as a silver player have 4 people on my team that may get thatthe diamond player, but 5 people on the other team that may get itthat diamond player.
Does the fact that there are more bronze players than diamond counteract that tendency or is it "safer" to wait for a while before playing ranked and get a more consistent mix of players in each game?
It seems to me that early on you're going to end up with a lot of cases where a diamond ends up vs a bronze in lane and the resulting destruction will then skew the entire game making your performance much less significant.