Section 12 Promotion in Rank.
All promotions in rank must be advertised and appointed from the Seniority list. If there are no applicants then they can direct reverse order.
If the are not on the list they cannot be appointed/directed.
It is just semantics I know but they must be on the list before being offered/directed to a promotion. It will be interesting to see if subtle pressure is used to get new hires to accept an A320 position and how ALPA/FEDs react to that.
The real answer is to make the A320 FO position more attractive in the current contract negotiations.