Thats not entirely correct pattystacker..
Domestic are still primarily domestic and LH are primarily LH.
Jetstar employees are requried to resign and reapply for the other section if they wanted to swap.
Team Jetstar employees are told from day dot that in some circumstances they may be required to complete SH if they are LH CC and vice verca.
It also means that when cross crewing needs to happen team jetstar LH CC can work the first sector rather than being pax'd! and SH CC can completed LH sectors