Your enhancement shaman's damage is terrible- 40kish lower than mine on our heroic kill yesterday (Heroic has no different mechanics that affect DPS, and infact Enhancement DPS is bugged due to a totem issue so in theory someone's DPS should be higher on normal than heroic).
His spec is wrong- he should be speccing Echo of Elements over Elemental Mastery. His reforging is poorly done and seems nonsensical- at times he reforges hit to expertise then reforges other items back to hit. He has no leg enchant. He didn't use any agility potions.
His Lightning Bolt casts are too low-they should be one of his highest priority spells, likewise his Lava Lash hits. His Flame Shock uptime sucks. So does his Searing Flames, so his uptime on Searing Totem/Fire Elemental is bad. I don't think he is using the correct priority list tbh when you take all of that into account.
Overall he is really poor, and needs guiding to a "How to Enhance" thread because I'm not convinced he knows what he's doing in raids. And from reading other comments it looks like a lot of your other DPS really need the same cos the majority of them are not pulling their weight.