From the time we first joined the workforce we’ve always done our best. We’ve put in the hours, done the work, worked hard to get somewhere.  You’ve developed your skills, you’re good at what you do. Over time, people recognized your abilities! You may have won awards or received recognition for your effort in other ways. This was all based on your individual performance. You're a Rockstar now.  Some in your organization may even believe you are ready to take on new responsibilities.  They offer and change your job to one that manages people directly based on your previous Rockstar performance. You are now a first-time manager.