TBH I like the team the way it is though Marc would be great - for a decent price of course. Delon isn't expendable imho for a couple reasons - 1) injuries - just so happens that he's the one injured but the team still has 2 solid guards 2) long term I believe Delon projects to be the better player - at least on defense especially at 6'5" with those long arms.
As for expendable, if anyone has become a "little" bit more expendable would be Powell and that's only because of OG - though Powell has been great on the 2nd unit.
Really, the team is a solid 2 deep at the 2-3-4 and 3 deep at the 1-5, something which the Raps have never been able to say before. The team also boasts the best home record, the 3rd best offense AND 3rd best net rating in the league - and really, we're talking about tweaking the defense and defense becomes better with more time together on the floor. I would really much prefer more time given to this group in this new system (which is only 20 games into the season) before any big moves.
I agree that more time together will benefit the team. 20 games is nothing and we won't see the true results before playoffs. Just hoping the health is there. Gasol would be a great fit but if the price is more than JV + fillers I'd stay away. Still have to keep in mind the long term future.