If players are doing the CORRECT AEO you wouldn't have to issues. I ran The Vault with a BRD and a Drg and since bard used His Tp sons and Dragoon positioned correctly for his AEO healer ONLY used dots if he had time but we ran it really quick. The I ran Vault with a Mnk and same BRD and MNK was only single target it took us 40+ min. So it isn't about running out of tp but knowing how to ROTATE the skills appropriately.