> - If you trust them completely, you don't need to know what happens next either. Just trust them to do the right things, your leadership isn't required.

You might need to know timescales so that you can inform upwards/outwards/other. You might need to make sure other resources that might be necessary are available. The planned "what next" and the proposed timescales might have impacts elsewhere that they haven't realised (and maybe even until now had no reason to be aware of). If they tell you the what next and there are no such complications, then they can carry on, otherwise there might need to be some changes to the plan or changes to other plans to allow time/resources to be available for this plan or just to stop potential near future conflicts.

Trust, but verify. And perhaps even assist.