That's a whole new can of worms, and underlines something I'm hoping for. Hopefully, the "squad" dynamic can be expanded to peacetime operations. I'd love to see groups of dwarfs treated as a single entity for work delegation. Have a "hauling corps" that'll have a wagon and can drive it out to the woods where the logging team is chopping away, load it with logs, and drive it back to the main fort ramp, with one guy on the buckboard driving the mule and the other two hanging on the side. The drop of the lumber, have a beer, then push a couple smaller carts down into the mines to load them up with magnetite and deliver it to the foundry room.
The first step, I think, would be to allow the jobs themselves to be packaged together into projects. Once that's been achieved, maybe a way for the projects to be assigned to squads would become feasible, instead of individuals just working on bits of projects.
How cool would it be to title a group of designations? Hit the "Start Project" key, designate all the halls and room for a new dormitory, then close out the project and call it "Lower Dorms". When your miners get to work, you can prioritize it via the manager screen, so they'll complete the stockpile dig before they get started on the sleeping quarters. No more of this "leave one undug tile right in the middle of the obsidian farm while we dig out a new wing of the dining hall" nonsense.