Devops is all about culture, with groups of teams working in concert toward a common goal. But as opposed to some workplace cultures, there are certain traits and talents all devops team members must have in common. You could be the best software developer or system administrator in the world, but if you don't possess "devops talents" you'll soon find that you stick out like a sore thumb and any devops shop worth its salt will likely give you the boot.
High-performing devops shops fire on all cylinders, with each team member committed to the overall mission. When one team member doesn't inherently believe in the mission, they can soon find themselves holding up the pipeline and becoming the bottleneck in what would otherwise be a successful deployment strategy.