You need a complete change, both professionally and personally.

你需要在工作上和自身两方面有彻底的改变。

《牛津词典》

They are allowed to change, only it must be a complete change.

他们是可以改变，只是必须变得彻底。

youdao

It's a complete change.

这是彻底的改变，彻底的。

youdao

American soldiers, used to being on the offensive, have had to adopt a complete change in mentality.

CNN: Iraqi forces now calling the shots

The idea of a central management console for all server and desktop administration tools is a complete change for NT users and should give managers greater control over more NT resources.

CNN: How to prepare for Windows 2000

This breaking off from the social graph is a complete change in direction from what Parker had worked on at Facebook and is currently helping to develop at music site Spotify.

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