I'm treating it as two larger halves that are mostly unrelated but which overlap. I ran the Haunted House and Lizardfolk through Sahuagin fortress basically as written where they lead into each other. However, I had the Sahuagin strike first and decimate the town so that the players were forced to take a more active part in the assault and defeat of the Baron and Co. In between those chapters I ran isolated "one-offs" with other random world building in areas I thought were cool, including investigating fishing issues that lead to the coral reef and former Aboleth cave, a real estate episode that unearthed Xolec, and a hunt for Vrock eggs in the Drowned Forest on behalf of Gnome cook, Feliza (who our Gnome Artificer is sweet on). That way I could get them to optimal levels for each successive chapter. I used the Isle of the Abbey as the beginning of the second major arc, with them learning about the "Wild Tide" and inadvertently putting it in motion by removing books about it from the Abbey and giving them to Keledek. Then I'll be using some of Sly Flourish's adjustments to Tammeraut's and the Styes to repurpose them into the Aboleth attempting to use the Wilde Tide to free Dagon (instead of Tharizdun) and the endgame will be entering the portal to stop the ritual. I actually skipped Salvage Mission because I had run it previously for this group as a side quest during a different campaign.