they're as good as they can be with the quality of players they have
asuna and bang already reached their potentials and it just isn't enough, it's fair to assume cryo was just a chamber 1-trick and won´t ever show a level close to what he did on XSET again. eeiu has always seemed average to me, ok at everything exceptional at nothing
if you want to be top 4 in americas replace asuna and bang, if you want a legitimate shot at winning champs replace everyone but boostio