sorry dude i didn't mean to be harsh but it did need a total revamp!
since you changed two members you would have new problems now.
I doubt Dory is sweeping this team. Firstly it needs to break past Skarmory (which incidentally walls Dory)
really? i use a similar set and it can't wall a LO dory:
+2 LO Rock slide does 73%~86% to skarm.
also Terakion rapes his team after a rock polish (before he changed into a scizor)
as he 2HKO his skarm with CC.
about breaking his team, the way it is now a simple BOAH with Focus punch/crunch/flamethrower/sub can break his team with proper support.
dude either you didn't play alot of GEN5 or you're flat out a bad battler.
also, that Gyarados with no rapid spin support is crap due to the new sleep mechanics.
since you don't want to revamp your whole team i only have one recommendation:
~to drop the CB Azelf set, and put a Gliscor on this team while moving Heatran to the lead position.
the standard set with SW/Ice fang/EQ/Protect
good luck