What you can not do with Angular.js out of the box which you can do with jQuery?
What problems I might face if I switch from jQuery to Angular? Basically my code consists of many onclick -> make ajax call -> add or remove some elements, change css, replace some text
"Games, and GUI editors are examples of very intensive and tricky DOM manipulation. These kinds of apps are different from CRUD apps, and as a result are not a good fit for Angular. In these cases using something closer to bare metal such as jQuery may be a better fit." -- Overview doc