The biggest time wasters are rarely big tasks. They are the many small handovers: transferring something from one system to another, getting an approval, letting someone know, updating a status. Two minutes each, but together easily a working day per week.
We map these chains as a workflow: a trigger starts it, data is checked and transferred, approvals go to the person responsible, everyone involved is informed. Where a decision is needed, the workflow pauses. Otherwise it runs straight through.
Every step is visible and logged. You can see at any time what has run, what is stuck and why.