“I’m glad that way works for you but it just won’t work for me.”
If you hear this push back on why that person feels this way.
They may have valid points to improve things further but don’t believe that they will be heard or taken seriously.
What they might have heard is “I am right so you must be wrong.”
Prove them wrong.
The right way is derived from understanding what a process is trying to accomplish and knowledge of what is actually going on.
Any arguments that there are multiple ways to do something are subjective and need to be investigated.
Rely on the fact that there is a right and a wrong way to do something.
Say a person starts the process better than others. While someone else finishes the process well. Maybe another colleague follows up in an effective way.
Add up all these individual strengths and you are on your way to the right way!