My Bottom Line: Julian Roberts, Old Mutual

Julian Roberts is the chief executive of financial services firm Old Mutual, external.

He says it is vital that all feedback is designed to boost staff motivation - even when it is negative.

Julian appeared on The Bottom Line, external, which was broadcast on BBC Radio 4, external, the BBC World Service, external and the BBC News Channel, external. You can also download the podcast, external.

Explore more My Bottom Line, external videos.