I like it. There is something subtle here that marks Nadella as a pretty good senior manager (assuming the paraphrase is accurate). He explained what the job is and how to do it in a simple and concise way.

Now you'd think that would just be normal practice but I have witnessed a disturbing number of leaders who either never got this talk or lack the empathy to realise that you have to explain to people what they should be doing. I will single out "leaders" who demand people get vague (or even specific) results and they have to figure it out. That is the extent of the leader's communication. All too common a practice, that can work with the right people but it is bad management.

Nadella isn't doing that here. He is still asking for vague (or specific) results, but he is including a "with these tools and by doing these things" part that is quite important and makes the whole talk actionable.