I'm studying Rita's process chart against ITTO, and can't understand the below two questions:

1. Why is "divide large projects into phases" the 4th step in this process, even before "understand the business case"? I suppose it's an output. What's the input for that, and what T&T is used? I think it would make more sense to move it right before the "develop project management plan".

2. Why is "Product product scope" after "Execute the work according to the PM plan"? Isn't product scope defined in scope define phase?