can you change the order that members appear on a card ??

[Charles Mann]

in other words - the first person listed has the task primarily and others secondarily.

when I add members to a card they always appear in the same order

[Torben_trello]

Hey Charles, 

right now, the members on a card can not be rearranged. I personally would recommend using a label in addition to the card memberships to indicate the resposibilty or ownership of this card.