I don't know where you're getting your numbers but Jesseh is clearly not doing "average" dps of an average raider
Today he came in 9th percentile for Gruul, 6th for Oregorger (where he died to rolling), 24th for Hans&Franz, and 15th for Beastlord
Last week he came in 8th percentile for Gruul, 18th for Oregorger, and 12th for Hans&Franz
If he placed so far below the average and/or median EVERY SINGLE FIGHT with a 676 ilvl, he's clearly not an average raider - just a freeloader
I'm not saying everyone needs to place within 80th, 90th percentile for their specs but there has to be improvements because I think there are some people who don't put in enough effort to deserve their spot. These people are holding up progression for the rest of the raid group
I'm really curious as to whether or not you're actually looking at the numbers or have a different standard for an "average raider"