You cant make people efficient but you can make them effective.
When people are given responsibility for their actions and a clear and mutually understood end goal, they are garuented to out preform any previous work.
For this to happen you need a good leader, someone to give a clear goal. A good leader will never give instructions on how to get there, they will offer support and resources but they never give it away. For an individual to be truly effective they must be independent.
Even if an employee/cohort isn’t fully independent yet they must be given the initiative to begin acting independently. Their independence will spark creativity as well as free up the time and energy of the leader/boss.
People can’t be efficient, there are emotions that get in the way. Instead people can be effective. They can be champions at what they do, they can accomplish.