From the World Economic Forum in Davos, management editor Andrew Hill perceives more business confidence, but there is still caution about spending large cash piles. He also analyses the exit of Mohamed El-Erian as Pimco chief executive<br /><br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Subscribe to the Financial Times on YouTube; http://goo.gl/vUQx5k<br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes