Saints met with top QB prospect Cam Ward [Schefter: “Its up to CLE, NYG, or maybe Saints to make compelling offer to move Titans off #1 pick”]

Well, the good thing is, moving from 9 to 1 has happened a few years ago when Carolina moved from 9 to 1 to take Bryce Young and they moved their no.1 WR to the Bears in the deal. It is a steep, steep price. I don't think the Saints do it because everything they've done thus far says they wanna attempt to win the NFC south this season.
If what AdamWest said is true it might be cheaper than what Carolina paid.

Drafting Ward does not mean they cannot win the south with him. Moore is going to have to win with a rookie at some point whether it is this year or next for obvious reasons.

Honestly after thinking you may want to do this now instead of next year and you’re possibly drafting in the late teens and have no shot at any top tier QB.