Are you intentionally paired with bad people in promos?
Seems fairly unreasonable that every time I begin to rise in ELO, I'm immediately dealt a string of five games with awful people that send me rocketing back down the rankings. Usually it has me last pick and I end up filling support as well.
Is this intentional? Is there some kind of cost associated with Riot moving people up, that they want to keep you in a lower tier?