Summarize the limitation of Lewin’s change model and Shore’s systematic biases, homework help

Summarize the limitation of Lewin’s change model and Shore’s systematic biases, homework help

 Can you use 1or2 simple sentences (begin with a verb)to  summarize the limitation of Lewin’s change model and Shore’s systematic biases , make people easy to understand。

example:limitation of Lewin’s change model:1. 。。。。。 2. 。。。。。

                limitation of Shore’s systematic biases 1.。。。。2.。。。。。。

I have search some articles , but I think it is a littele difficult to summarize 。so I wish you can help me。It is a very easy question