Ok now seems like almost every run I do on my blm either

1) The tank can't seem to hold aggro on groups and I pull mobs off him while I have quelling strikes up and going, or

2) The healer can't always keep up on heals with either groups of mobs or on the boss's or both cases, or

3) the other dps is performing very poorly using spells/abilities in the wrong type of situations like not using thier aoe's on group pulls or using aoe's on single target mobs

I've also been in runs where it's been a combination 2 of the 3 or all three making for a very long and trying run. This has happened while doing the expert roulette, some of the latest content to be released. I know ppl have different skill levels but when they're struggling with basic skills that are taught in the hall of novice how do they get that far into the game and still not know what they're doing?