It may not be the first source of theory or advice many people look for, but there was a recent article about how the Sky cycling team took a disappointing 2104 Tour de France and questioned a variety of things which ultimately led to their success this year.
The general manager, Dave Brailsford, talks in this article about the desire to not accept “its OK” and the process to build much better performance from the team. You don’t need to be a lycra wearing weekend warrior to be able to consider the points and perhaps apply some of the thinking.