Even a great speaker must be more careful as the composition of the congregation improves.
It could have been easy to communicate in a small congregation, but it becomes more professional when it comes to the corporates.
So one should prepare himself more when he is to talk to an elite class of updated people.
The fact that you are a lecturer and always interacting with undergraduates does not mean you carry the same humour in a meeting of managers.
But I urge you to present your best whenever you are called for public speech.
Have much self control that is given by the Holy Spirit, as He communicates to you what to and what not to speak, and know what your listeners want to hear and flow in that direction.
We need to make better people.
Thanks for reading.