Claude Julien is the head coach of the NHL's Montreal Canadiens. He was formerly the head coach of the Boston Bruins from 2007-2017. He led the team to the 2011 Stanley Cup and before his departure in 2017 was the longest-tenured head coach in the NHL.

Here, Julien advises coaches to avoid over-coaching. Usually that concern arises in the context of shouting instructions during games. But Julien applies the principle to how much information he provides players as part of pre-game planning.

For example, he suggests emphasizing just three or four keys, rather than 10 or 12. That allows players to really focus on the three or four most important and frees their minds of over-thinking. That way, players are more likely to think, act and react creatively, which also makes the game more fun.