If he or she is your ‘Carbon Copy Fraternal Twin’ … perhaps! But, your ‘555 Team’ would seldom promote this method of accomplishing a decent and repeatable golf swing.
“Why!” you ask. Two good answers … 1) Because we are all different physiologies and mentalities! We never ascribe to any ‘Cookie Cutter’ approach to developing a golf swing. It is a path to frustration. 2) Because we all see and perceive a third parties golf swing differently from both a mechanical and from a perspective point of view. They practise every day! You don’t!
What you think you see may not really be true! This is very much like the bold difference between ‘Mechanics & Feel’. Knowing golf swing basics takes training and experience.