If there is any huddle to the task, they cannot move forward, they have to stop and throw the issue over the fence to the tasker.
One can often hear the difference in the language used.
"We will fix it by Friday."
"We don't understand the problem we need to dive deeper. "
"That's out of the scope of our mission."
"We will figure that out."
These are all delegating phrases. With each one, the we in each phrase is accepting responsibility for completion or discussing what their responsibility is.
I will explore how to solve this?
Let me play with that for a while.
I can test that out.
I will work on that today.
If you have that done today I can start on this tomorrow.
These are all tasking phrases the I in each phrase is signaling, informing the team about their action, not committing, not accepting ownership but informing so the team can move forward as one.
In the end, this clarification between tasking work and delegating responsibility ensures our teams have things they can achieve and ensures they work together to achieve it. Delegate to teams; task within them.
One more thing
It is much easier to delegate problems, this is because it is a clear way to ensure you are giving ownership. Please solve this problem.
One can view delegating as a process of defining the problem that needs to be solved, where tasking is the process of building the solution.