More or less? Does it have to be a binary choice?
Ultimately the goal is to get progressively better. I seldom see the option of doing it better. In my experience it is about better. I implore you to think about what can be done better. Emphasize quality and recognize that quality is a measure of perfect. Look carefully at your training programs and look for the areas that can be done better. If you are training for 90 minutes are your athletes getting 90 minutes better or are, they just getting tired?