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From a projectmanagement point of view (yes I am a certified
senior projectmanager) I would advice not to it this way.

What I would suggest here is a splitup in
1) severity (how heavy is the problem)
2) urgency (how soon should it be solved)

and a sorting on either severity/urgency or urgency/severity

this gives normally the result you like to acomplisch.

I am used to projects with hunderts of issues (50 people or
more) , and this way you can agree with a customer only to
solve or discuss the top 20 based on either of the two sorting
mechanisms.