Leading through a crisis is a multi-step process. There's no silver bullet. 

How to get your team through crisis 

• Understand disruptive events and complicating factors 
• Manage the bad news 
• Know how people cope 
• Who's freezing, fleeing or fighting?
• Up your visibility - 
• Catch & kill rumors and gossip 
• Raise expectations 
• Prioritize and focus on daily process goals 
• Find some quick wins 
• Re-recruit your flight risks 
• Prepare your back fills 

"When written in Chinese, the word 'crisis' is composed of two characters. One represents danger and the other represents opportunity."

John F. Kennedy