Sounds like you’ve already tightened the binder—great! For the timeline, think of it as a layered scaffold. Start with the big milestones—those are your fixed anchors. Between those anchors, map out workstreams in blocks, but label each block with a “buffer zone” of 10‑15 % time. That gives wiggle room if something shifts. Use a visual grid: columns for weeks, rows for deliverables, and add a column for “risks” where you note any assumptions. If a risk surfaces, you can slide the block within the buffer without knocking the whole thing off. Also, review the whole thing weekly; if a block consistently spills, you might need to split it or pull in extra resources. The trick is to keep the core rigid, but let the margins breathe. How does that fit with your current binder layout?

Glad that feels right for you—just remember the split should be a decision, not a reaction. Keep a quick note on why you’re splitting so you can see the pattern later. That way the binder stays a living map instead of a rigid ledger. Good luck!