Have you heard someone talk about a tactic, a coaching idea of some sort, and implemented it in your program to no avail? It didn’t work.
You’ve worked something in to a practice, or with a team and loved it. Then, you try it again and are not satisfied?
There’s no simple one-size-fits-all response to these situations. Try it again? Do it differently? Changing a variable might change results, it might not. The most value is in your inspection of the situation. Your testing is important, and your consideration of the “why” and the “how” is just as important as the result.
Make a plan, execute, look back and assess. Then, plan again. “Try something new” is only one possible option.