Unfortunately that's a player problem. It's probably a combination of your DPS hitting the wrong buttons and your ADPS hitting the wrong buttons, or just not hitting buttons at all. A level increase won't fix that. That's not an easy problem to fix, especially if no one is doing as much damage as they should be. It would be difficult to assign class leads to fix the problem. There are a lot of good guides out there though, somehow you have to encourage people to research on their own. If you want to direct your Mages to me I'm happy to help, but you have a lot of different classes that all really need to step up. One thing that might help is to make sure you post parses in visible places and make sure your leadership emphasizes the need to improve performance. That can sometimes motivate people to change their play.