Some people know the mechanics of how to write, but they are not very good writers because they don't have the imagination to add the appropriate descriptive phrase, adverb, adjective, whatever it is that makes this thing live A little, makes it more readable, more appealing. I don't think you necessarily can teach just anyone to be a professional writer, but you can help them improve, I would encourage young officers not to draw away from the normal approach to writing tasks but to accept them as a challenge to create, just as any other artist does.
Rarely is rewriting unnecessary. Write it, read it, and, as a consequence of reading it, write it again and work it and rework it and get suggestions and get it critiqued.
General Barrow, NAVAL LEADERSHIP - VOICES OF EXPERIENCE