return to action on Wednesday, having experienced contrasting fortunes in their opening Super 12 games -Englanddemolished West Indies but On the bench, there is one further alteration to last week's squad as Ulster hooker Rob Herring replaces Dan Sheehan. "There are a lot of one-loss teams out there. There are no other undefeated teams. "Tonight is where the Cardinals can show us what they're going to be."