Satya Nadella never had the ambition of becoming Microsoft's CEO, but believed in the importance of his current role.Nadella's most important learning in his 30 years at Microsoft is to not wait for his next job to do his best work. He believes that growth comes from what one is doing currently and that one cannot grow if they don't have this mindset.Nadella climbed the corporate ladder for 22 years, adapting to fast-changing market conditions and attributing his success to his growth mindset.