I ran something similar in a local tournament when I first started playing (those were the ships I owned and I had borrowed the upgrades). I ran Motti instead of Thrawn and the points went towards more TIEs. I think I had squeezed Shield Techs on the VSDs too. Tough as nails and really forgiving for a new player. Went 1-2 over three rounds. I agree with the points above about DCaps. The other big issue I ran into was it was way too easy for my opponent to limp away any crippled ships and the formation of star destroyers was way too cumbersome to chase anything down. Left far too many points on the table. Not sure how you squeeze in a good finisher (couple rogues maybe?), but that might be what's missing.