NRG's main problem is 100% the strats and the coach player connection.
Zellsis said in a clip that in the match SEN vs NRG, Ethan and Chet didn't agree and discussed which map they wanted to pick.
A team the size of NRG has to have a sensible match plan and sensible strats. You can tell right away in the mid game that NRG shows no creativity or a clear plan.
The same thing is with the team comp, how can you pick a Kayo if you know that the LEV double controller plays without sentinel. kayo has 0 value on the map, Demon1 is a very good aimer but his utility usage is not enough on the map.
Vicor is a better raze because he generates space better and uses his ability better. demon1 is only better in 1v1