Many people confuse the role of the leader thinking they must have all the knowledge to ensure the doing gets done.
The reality is that being an amazing leader is like being a leading Maestro.
The Maestro does not know how to play all instruments in the orchestra yet generates such an amazing outcome that it leaves the audience in awe.
The role of the maestro is to lead and give the right direction to the subject matter experts and ensure they are all playing from the same music sheet with the same timing.
A leader in business is no different.
They do not need to be the subject matter expert in every aspect of their business, but they must be able to give guidance, direction and ensure that all business unit leaders are working towards the same common goal.
Being a great leader is about spending 70% of your day guiding, coaching, and supporting your people to ensure they understand, and can deliver on the goal, while the other 30% is dedicated to knowledge, building the vision and other essential activity as a senior leader.