I wouldn't put a zeta on Starck. If you're getting to the point where Starck needs more protection, you've probably already lost. It's not that good of a zeta. I also wouldn't swap in DT, and particularly not for Storm. You've got a good team as it is, and taking out your only tank is probably not going to help, and you have a lot of offense with snow and range already.
Consider building a new one around Palpatine. What's the purpose of this squad? Arena? In which case, aiming for a Nightmare team might be the better option over all