There is a saying that practice makes perfect. It rarely does. However, through repetition, we become more adept. We gradually and often slowly eliminate issues and continue to improve.
What practice is doing is helping us create the habit where we no longer need to think and analyze, but instead, because we have trained our mind and body, we can execute as conditioned, without thought impacting and altering the outcome.
The team that takes on a new practice to improve their communication and execution, and then in two weeks abandons it because it is not working? Only through practice will the team become successful, and the sooner this no longer feels like a routine but rather an ingrained habit, you will understand the value of that initiative. Look at any sports team that manages to execute a fantastic play. The likelihood is that the exact play was practiced hundreds of times.
Practice will get us closer to our imagined perfect, but perfect will change in most of what we do. However, practice will make it permanent.