All the stuff that Sunfish said PLUS.
Bring all the pilots in all the subsidiaries under one seniority system.
All Jetstar employees go straight on the bottom of mainline list. Eastern and Sunnies get melded on date of joining only and that list goes under the combined mainline/j* list.
Pilots under a certain age can progress to jets based on seniority and performance...promotion based on bidding for available slots....no DEC from turboprop to jet..if you're a dash captain and want to fly jets and you meet all criteria you can bid for a jet FO slot based on your seniority. For instance some might bid for A320 slots that come up and someone else a few mths later might bid for 744 slots..just the luck of the draw about what comes up when....of course type freezes for say 2-3 years unless company needs override.
All, and I mean ALL cadets and GA recuits go into the right seat of a Dash 8 and get a seniority number based PURELY on the date you CHECK TO LINE on the Dash. ..and progress in the normal way from there on.
This I believe is what AIPA,AFAP,JPC etc should be uniting for....you want to protect your turf then unite and do it....there is NO other way that the pilots in the various companies will ever have a vested interest in YOUR terms and conditions....and you'll never be strong enough on your own to achieve anything.
The pay off for management is career minded pilots who have a vested interest in the company's success.