I think that Lincoln gives us some other valuable lessons that we can apply to proposals. I read ‘The Team of Rivals’ by Doris Kearns Goodwin published by Penguin last year. As well as being a fascinating read, the book also shows the importance of strong leadership, working with people to build effective teams and having the right strategies – which are key components of any successful team.
For example, Lincoln built his team based on what he believed would be the strongest collective, putting all personal differences aside. As you know the team of rivals was born and the rest, as they say, is history.