Dallas Willard died on Wednesday and few were not influenced by him in some way. A really good post here includes a collection of links to tributes -Ortberg and Foster are among them [both are essential reading] and take some of his wonderful advice here.
Ed Stetzer on Missing the mission
What will you actually do about it?
Deep immersion for deep work
What is a Christian?
The new normal in church leadership
What happens when you really disconnect?
David Fitch on 'Is the kingdom outside the church?' is a good and thought-provoking read.
Three questions that can help you avoid leadership blindspots