Most teams know their own work inside out, but not always how it connects to the wider system of who they depend on and who depends on them. A dependency isn’t a problem on its own; it becomes one when it’s invisible.
Here’s an example that didn’t work out very well. Development agreed to complete a new feature for a particular date. Without telling Dev, Marketing built a major launch campaign around that date. Then, on the date, Dev states that they need two more weeks to complete the work. Result: cancelled ads, penalty fees, and a credibility hit. The problem wasn’t the delay; it was Dev and Marketing not understanding what the dependency between them was and therefore didn’t say something earlier. A quick chat earlier would have cost nothing and saved thousands.
A simple dependency map makes these connections stand out. Here’s a simple one that you can build in half an hour.
Step 1 – Create a catalogue of dependencies
List the teams you rely on and those that rely on you. Involve your team to identify those more hidden connections. Those connections are your dependency map. If it helps, sketch it out: a circle for your team, circles for the other teams, and arrows for who feeds into or out of your work.
Step 2 – Highlight the critical few
Identify the dependencies that could seriously impact your progress if they slip. There will rarely be more than five that really matter. Everything else is noise.
Step 3 – For each critical dependency, answer three questions
> What do we need from them?
> When do we need it?
> What’s the impact if it’s late or changes?
Keep it short – one honest sentence for each, no jargon, no long descriptions.
Step 4 – Keep it visible and relevant
These are the dependencies you actively manage – hold a weekly 10-minute review to cover what moved, what’s at risk, and what needs a trade-off.
What it looks like in practice
Product / Marketing (CRITICAL): Succinct “What’s New” summary by 1st of month. Contacts: Jess (Product) / Priya (Marketing). If missed: media plan slips; paid placements rebooked at cost. Notice period for changes: 3 business days.
The power of this method isn’t the document; it’s the shared understanding it creates. Blame fades when expectations, stakes, and rhythm are explicit. Regular reviews mean small slips surface early, before they become real issues.
Take our challenge – write down your top three dependencies and what happens if they’re late. Share it with the other teams. That single sentence turns uncertainty into alignment.
How Oak Mountain helps
We work with your teams to map the critical dependencies and answer the above questions, so teams see their connections, own their deadlines, and surface issues early. This is then extended into a light, repeatable review rhythm. The result: fewer surprises, faster flow, and clearer trade-offs.