Exactly. They need to look at a smaller short haul ac. It could even have the effect of opening up new potential routes as well as making existing routes more profitable.
They emulated Ryanairs policy too much, they really should have looked at Jetblue, which as you know uses both a320 and e190.
I think the C series would be a very good bet. In particular, one of the c110 veriants has excellant projected shortfield performance.