For a more efficient process, keep in mind the following throughout the document lifecycle.

Right task — Is the task appropriate? For example, don’t waste time proofreading at an early stage.
Ensure everyone has time to do each task thoroughly.

Right Time —Is this the appropriate stage to be doing the tasks?
Prevent delays caused by tasks being done too early or too late.
Don’t waste time doing tasks on content that may not make it in the final product!!

Right Role — Is this the right role to be doing these tasks? Optimize everyone’s input. Make sure contributors do the tasks that reflect their particular responsibilities and strengths.