In my eyes, the Delegate should be tasked with the security of the region, and that's it.
I would disagree that the PM already has too much power. In fact, I would say they have far too little. Allow the PM to "stack" the courts if he/she wants. If the picks are "political" as NR warns, we should just be voting them down before they are confirmed.
I would also agree that the Speaker should be elected. I do not think Deputies should be elected. I think the Speaker should appoint whoever he/she wants as their deputies with the caveat that if the Speaker is removed/resigns, the powers of the deputies are stripped and a special election is immediately headed by the Vice Delegate.
Totally against this idea, as it is just trading one problem for another, the supposed "over-authority" of the head of state for basically stacked courts controlled by the PM, who is elected/appointed with a political agenda. If that agenda is bad, and unconstitutional, the only way to stop a legislative coup or a violation of the mandate, would be a petition of members of the Asembly for the Delegate intervention to ban the PM and Justice via the CLS. Recalls wouldn't work, as the Court Justices could abuse their position to make said votes fail, and worse if the Assembly is stacked, those votes will never happen at all.
Not to mention, the Court Justices if they are in on a fix, won't ever say they are political puppets, so it is never easy to know if the PM DM'd them with an agenda in mind, and the Assembly has to assume they'll align with the PM as a political figure. This opens a new door to a legislative coup, as anyone could run for PM, to get Justices in to abuse the mandate. With Delegate picks, you've at least known them for years, or even in Delegate elections, for 4-6 months, and their agenda is meant to be around protecting the region, and that is not just in-game security but the security of the region as a whole. PMs are elected to have a political agenda however, they couldn't be elected otherwise.
If the Courts are not to be nonpartisan, they should be elected by the Assembly. Avoids that whole mess, and the Court serves the Assembly and the region, not the PM or the Delegate for that matter.