Better people make a better team
therefore
Teach SelfImprovementPatterns to your team.
Most people are already doing the best they can at the moment. Selling people on the idea that keeping a journal, having a to-do list, and so on will improve the team is a hard sell. An important way that teams improve is by tackling shared challenges and solving them - by discovering that they need to improve. See GrowingYourTeam.