The odd thing is they are not including Arrow 140, which would seem an excellent option. Possibly they don't think it can be built in timeframe.
However RAN procurement has a checkered history, to say the least. .
Allegedly 5 companies, considering Gibbs and Cox with the baby constellation are only design / engineering and zero ship building maybe BAE with arrowhead was the 5th and not gibbs and cox
That combined with Marles means probably end up a shambles
Cant be worse than pretty much every LNP defense minister. Every defence minister since nelson and fitzgibbon has sucked at their job, Dutton, Payne and reynolds being the stand out worst