Workers climbing the career ladder can feel threatened by talented colleagues but encouraging them to succeed rather than holding them back can actually help their own cause.
Not only is an ability to support colleagues seen as a leadership quality but workers who make themselves replaceable free themselves up for the next role.
InfoTrack chief executive John Ahern stepped up from chief technology officer to chief executive after succession planning himself out of his role.
Before landing the top job, he was a self-described "fixer", parachuted into situations to solve problems then move on.
"As the fixer, I could find solutions to problems quicker and more efficiently than most in the business and I would still be the fixer today if some wily old guy had not sat me down and said 'John, you need to figure out a way to scale this so your peers are as good as you or you're going to be stuck putting out all the fires for the rest of your life'," he says.