switch the bruiser(group2) with the necro (group3)
Switch the fury in (group 3) into a warden.
(can change a bruiser for a monk into group 3)
13% cast haste and 23% melee haste better then a TAUNT buff and combart art buff. The raids dps will be higher then the bruiser dps difference.
G1 - Guard/Defiler/Templar/Dirge/Coercer/Swashy
G2 - Illus/Wizzy/Troub/Fury/Assassin/Necro
G3 - Warlock/Troub/Bruiser/Warden/Conj/Shadowknight
G4 - Berserker/Mystic/Inquis/Dirge/Brigand/Ranger
I would also add in a second illus though

and more then 3 tanks are a waste so drop the crusader or brawler for a second illusionist.
With brawler (preferred setup)
G1 - Guard/Defiler/Templar/Dirge/Coercer/Swashy
G2 - Illus/Wizzy/Troub/Fury/Assassin/Necro
G3 - Warlock/Troub/Warden/Conj/Illusionist/Brigand
G4 - Berserker/Mystic/Inquis/Dirge/Monk/Ranger
With crusader
G1 - Guard/Defiler/Templar/Dirge/Coercer/Swashy
G2 - Illus/Wizzy/Troub/Fury/Assassin/Necro
G3 - Warlock/Troub/Warden/Conj/Illusionist/Shadowknight
G4 - Berserker/Mystic/Inquis/Dirge/Brigand/Ranger