Not being able to change class in middle of a dungeon *WILL NOT* solve class stacing or required classes for participation.

All thsi will do is force people to equip said job before entering the dungeon and playing through it as is.

So it will go like this:

Timmy > "Ready to enter Cutters everyone?"
Billy > "No Xcloudx is on his mnk"
Timmy "Cloud change to Blm"
Xcloudx > "I want to play mnk"
billy > "mnk sucks for this raid"
Xcloudx > "so i want to play mnk"
Timmy "Dude change to Blm"
Xcloudx > "No, i can do good dmg on mnk"

/pcmd oust "Xcloudx"
/pcmd add "Tidusxx"

Timmy > "Tidus come Blm pls"
Tidusxx > "OK OMW"