As of a few minutes ago all but 3 of the DP's on the MEM MD are filled by junior First Officers. All are 43xxxx or higher except one that was filled by a 300xxx number. Many were picked up by 500xxx numbers. I didn't recognize any of the names. A couple months ago I recognized a name and emailed and spoke with him. All 400xxx and 500xxx F/O's should be looking up the DPs and calling your crashpad roomates or classmates and asking them why they picked up the DP and post their reply here.