[This](https://youtu.be/6HWeg0Q8VP4?list=PLUl4u3cNGP62in17jH_DiJMkCGNM6Xni-&t=1921) video lecture (start at 32:01), the professor showed a demo about the effects of feedback on noise and non-linearities. 

The graph below is a system with input signal which is applied directly to an operational amplifier(the amplifier models the linear portion of the forward path gain), followed by a nonlinear element (has dead zone and two different degrees of compression of linear region). A potentiometer is put between the output and input of nonlinear element to moderate the effects on the non-linearity.

What I am confused is why the feedback path (potentiometer) is connected between the input and output of the non-linearity element as the figure 1 instead of the one as I modified in figure 2.

Can I use the feedback path with the voltage divider as figure 2?

[![enter image description here](https://i.stack.imgur.com/Yifl2.png)](https://i.stack.imgur.com/Yifl2.png)

Figure 1: system from the lecture

[![enter image description here](https://i.stack.imgur.com/Zz1eD.png)](https://i.stack.imgur.com/Zz1eD.png)

Figure 2: modified system