People have very short memories. Impulse went from 1900s to 717s without too much trauma. Seniority and who will fly what was all sorted out by the hours requirements and CASA. So what happened? A lot of expats who had flown domestically with IPEC,TAA and Ansett until the end of the 80's came home after a decade in exile. What happened to the existing pilots and their demands for jet seats? They waited and gained jet experience like Rex pilots will have to. When the operation matures and things settle down then the seniority list will reassert itself. Its not like this is a brand new concept and has never been tried before.