By: Joseph Grenny | Dear Joseph, Your book, Crucial Conversations, suggests that we are more effective if we express ourselves “tentatively” and encourage others to challenge our views. But many leaders (Jack Welch, Donald Trump, etc.) are the opposite—forceful and even dogmatic. And yet, they are very successful. I can’t remember either of these men speaking “tentatively” or encouraging others to share their divergent views. So do crucial conversation skills only work in some cases? Why d...