hmm. i think everyone has a pretty good point.
anyone in the band COULD be replaced if something were to happen, but the fact of the matter is that "PARAMORE" consists on hayley, josh, jeremy and zac. and taylor too i suppose.
the bond they shared made them the band we know and love.
and honestly, i think if any of them were to leave the band than it would be jeremy. i mean he's the oldest member of the band AND he has a girlfriend which he might decide to be more serious with in the future.
not to mention he has been know for pulling that disappearing act once in the past.....