Please. Don't. Move. UI.
Just don't move it, please. Don't make us feel like UI elements are running away from us.
When user clicks at (X, Y), the pointer should stay at (X, Y) in the context of current view. By moving UI for the sake of minimalist design you just broke the fundamental expectation. Now when user clicks at (X, Y), the click actually becomes (X, Y) + drag'n'drop to (X, Y+Z)!