This statement (see title) has been painted on signs, stickers, and even spoken out loud to describe the obvious, that there is a building of / creation of / or just fixing of structure. Well, in my environment it is spoken of to describe a persons ability to learn or to master said movement or skill(s). Many athletes who started working out in their adult ages (post 21 y/o) have a restricted movement pattern seen in the ability of the body to move without limitations.
With limited ranges of motion, and or strength and stability it makes the athlete frustrated which in turn makes learning a skill /skills more difficult. Thus the orange ‘men at work’ sign pops in my minds eye. Sometimes it’s ‘watch your step’ that pops up more often due to the mental inability for some athletes to concentrate while upset/frustrated.
When watching from the safety of my position, more than 6 feet away I can cue a little easier knowing that the object(s) will not be crashing down on me any time soon. It also makes for a better vantage point to cue correctly without going hands on. However, when frustration sets in it is time to intervene and have the athlete just stop moving or injury can occur. Watching out for those signs may be a great idea prior to starting the class in the first place with emphasis on explaning what the goal of the workout/skill will be for the day.
Many an athlete will adhere to the modification(s) provided and progress effectively and safely while others will not swallow their pride/ego to accept the proper stimulus for the learning to occur. Speaking with that athlete makes a world of difference without shaming them in the process. There should be no time, NO TIME where a coach has to Shame an athlete for anything. Correction and cueing are performed on the spot. At times you must ask them with grace to stop so as to avoid injury, but to shame them in public or private is not called for.
Work in progress goes both ways in the realm that I live in. I am sure that you share the same idea(s) also. Provide quality instruction, and be gracious to your athletes. They are still learning, and are more than eager to get better for they see results when the correct method of movement is taught, not yelled at for messing up on movement or belittled while learning.