TAM at Workday

I am interviewing for a Technical Account Manager position at Workday and wanted find out more details. How is the WLB? How may clients do you manage on average? What kind of potential opportunities are available if one wants to transfer internally? How are the responsibilities different for a Sr. TAM vs Principal TAM vs Sr. Principal TAM? Any interview tips? Thanks for your response. YOE 15+ TC $200K #interview