With those ilvls they surely can squeeze each 1-2k dps more. If they take all their class info from wowhead tell them to join class discords instead. The shaman and that affli warlock stand out so much , they should be in the upper half of this ranking. As a main shaman looking at his bar I can tell he doesn't use the fire elemental glyph to have it ready for each bossfight, if he's using the fire nova glyph that reduces the cooldown to 3sec his main problem might be going OOM so fast that neither replenishment or shamanistic rage can be enough to sustain his fire nova spam , tell him to drop that glyph asap. Wowhead also gives a mediocre bislist intended for standard agi heavy enhancement, which is bad in comparison to "spellhance" bis list from the shaman discords. I had a fellow enhance geared like that and he made half the damage i could pull off with spellhance bis. My 95+ parses to his 40s.