Qual a diferença entre "What it takes" e "What's needed"?

Q&A: What's needed to get a big data job?
-One advanced degree
-To have a good knowledge of Maths, statistics, computer science, programming and statistical programming. etc...

What are the prerequisites to get big data job?
What is necessary to get a big data job?


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We will win this game whatever it takes, we are the best team. (We will do what it takes to win this game/we are playing to win).

https://en.wiktionary.org/wiki/whatever_it_takes


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Sometimes they mean more or less the same.

He works very hard, and knows what it takes to hit your targets. (from Fifa site...)
He works very hard, and know what is needed to hit your targets. (my tweaking from the above sentence.)