Seems a little disjointed, the pieces don't seem to mesh as well as they could. First, I would identify what you're building around. Vader/Thrawn? Then start there, find out what that combo does well, and then use the rest of the squad to fill out the weaknesses. Specifically, I don't think Arica is going to be effective enough. You already have a strong shooter in Dash, I would spend Arica's 31 points elsewhere, maybe as a secondary melee threat, damage sink, or interference piece.

Im gonna go the oppisite of Rouge, i know your a great squad builder, but if this was me what i would do is lose Dash RS, basically he already has opp & when you got thrawn giving it too all theres other ways to go. I think in this Arden becomes sort of a Dash caliber shooter with thrawn, maybe with dash out you can put a couple of low costing figures in here to get some better temp control. Maybe even a couple of 501st Stormies doing 30 damage via Vader/Thrawn. You got Lobot to get you uggs which is good, but Other than this what i would do i think it looks like a good squad.

Haha dude i was sittin here thinkin why you had Jagged in but i totally forgot dash has pilot... Yea Cad i mean is a beast on the streets, but IMO he's just too many pts & when you bring him in he becomes the main focus & majority of your squad...

Now Rex 501st, i would say save that for a whole other build together, if your going that way you might as well go all 501st troopers, vader SA & thrawn etc.

Now i do like the Jarael idea, she gets her evade/parry plus w/ opp she becomes a force to not mess with. Plus you wouldnt even have to automatically put in a vigo to GMA her, she would be good in the swap then parrying all the hits back if a melee.

I like your basic stucture on this squad though, like the bases of the pieces you got in there.. I agree if you mess around you'll find a solution. Right now as is i mean like i said i forgot dash got greg. via jagged so remembering that, it does become a good combo. So yea it is looking pretty good. But yea your a really good squasd builder so im interested to see what you come up with...