Chipotle's Problems

What are the Chipotle’s main problems? 

- Possible sources for problems (Focus on two or three problems).  

External environment

- Threat of substitutes

- Paradigm shift

- Bargaining power of suppliers

- Or others

Internal operations

- Business models

- Leadership

- Culture

- Products

- Or others

Three to four double-spaced pages long, with a font type of Time New Roman and a font size of 12.