I only want certain Queue Members as Assigned Approvers

Here's my Use Case:

• I have a custom object record that runs through an Approval Process
• The Assigned Approver is a Queue of Users, not all of whom need to see or Approve this particular record
• I only want Queue members who are also a specific Role on the parent Account's Account Team to Approve the particular record
• Assumption #1:  there is more than one User who meets the criteria from my previous point
• Assumption #2:  there are too many Accounts for which to set up individual Queues and dedicated clones of the same Approval Process

Given that I cannot designate Account Team Members with the specific Role as Approvers (similar to setting them as Recipients of an Email Alert), what's my best approach?

#Approval Process #Queue