PowerBI Hierarchy RANKX Against Everyone at Each Level - powerbi

Question

I'm having a lot of trouble figuring out how to get RANKX to behave at different levels of a hierarchy.
I have a hierarchy structure as follows:
Region
Manager
Supervisor
Agent
For simplicity sake, let's rank each level on the total number of Requests Handled. I want to rank each level of the hierarchy against everyone at that level. For example, at the Agent level, each agent's total Requests Handled should be ranked against every other agent, regardless of what supervisor, manager, or region they are in.
I can get the agent level to work just fine with the following, but I can't figure out how to get the upper levels to rank against each other. This works fine if I apply the same RANKX statement at any level, but only when one level is shown in a visual. When adding any additional levels it breaks.
Requests Handled Measure =
SUMX('Work Done',[Requests Handled])
Rank Measure =
IF(
ISINSCOPE(Roster[Associate Name]) && NOT(ISBLANK([Requests Handled Measure])),
RANKX(
ALL(Roster[Associate Name], Roster[Supervisor Name], Roster[Manager Name], Roster[Region]),
[Requests Handled Measure],,DESC,Dense
)
)
The ideal result would be something like:
- Region 1 240 Requests Rank 2
- Manager A 122 Requests Rank 2
- Supervisor A 65 Requests Rank 3
- Agent A 30 Requests Rank 9
- Agent B 35 Requests Rank 5
- Supervisor B 57 Requests Rank 4
- Agent C 29 Requests Rank 10
- Agent D 28 Requests Rank 11
- Manager B 118 Requests Rank 3
- Supervisor C 65 Requests Rank 3
- Agent E 33 Requests Rank 6
- Agent F 32 Requests Rank 7
- Supervisor D 53 Requests Rank 6
- Agent G 26 Requests Rank 13
- Agent H 27 Requests Rank 12
- Region 2 250 Requests Rank 1
- Manager C 99 Requests Rank 4
- Supervisor E 56 Requests Rank 5
- Agent I 25 Requests Rank 14
- Agent J 31 Requests Rank 8
- Supervisor F 43 Requests Rank 7
- Agent K 20 Requests Rank 16
- Agent L 23 Requests Rank 15
- Manager D 151 Requests Rank 1
- Supervisor G 78 Requests Rank 1
- Agent M 40 Requests Rank 1
- Agent N 38 Requests Rank 2
- Supervisor H 73 Requests Rank 2
- Agent O 36 Requests Rank 4
- Agent P 37 Requests Rank 3