I know this is too early to talk but the two main issues with NRG are their synergy and role issues.
While both problems are solvable with innovations and time together, I believe a good way to fix the role issues is to replace Ethan with an IGL who has a similar agent pool to FNS, or FNS himself, which is playing secondary initiator, viper, and sentinel. Off the top of my head, I can only think of FNS, runi and Boostio with this agent pool.
This I believe, fixes a problem NRG face while playing maps like sunset, where due to a lack of a sentinel player, victor is forced to play a sentinel, leading to demon1 playing Jett, which is a suboptimal pick. Having such an IGL will allow victor to play Raze on Sunset with demon1 flexing to smoke or other roles.
TLDR; imo, NRG needs an IGL with FNS's agent pool