Time allocation per department


I’m trying to see if I can set up some automations or formulas based on the project size.

Scenario: one project 10 units size needs 6 weeks to completion. I’m setting up the time line (Timeline#Start and Timeline#End).
Now there are 6 different sections that will have to coordinate in a work flow so each can have 1 week to complete their tasks.
There is a way that I can set up some formulas creating due dates for each section based on the project size and the overall timeline?