We need to create a superteam, the likes no one has seen before
Has performed well in the stats department as well considering he usually plays Sentinel characters or KAY/O. Not really gonna count that one off Jett map yet. Though if he brings it out in Berlin, he might need to start being asked for more on the fragging side. But his fragging as a sentinel and lurker are great.
If I remember correctly Shahz said it that sometimes they struggle against teams that just had a roster change and having a new player. Like yay a mummay are playing jett but of course they gonna play differently.
So I would say either yay gets used to play in NV and gets together, make tactics or protocols together or/and SEN figure it out with the time being how they can counter them.
While I think NV has potential more so than 100T let's not overstate this new player thing for a couple reasons.
Duelist changes are usually the easiest in valorant, especially like for like changes such as Jett for Jett as duelist are inherently selfish and thus their utility oftentimes is either incredible straightforward in its use or completely meant to be used to aid themseleves. If it was a sova for sova change or sentinel for sentinel there becomes more credibility for the new player argument as entire setups/execs would change with support character swaps.
Yay in for Mummay is one of the most objective upgrades we have seen in Valorant up to this point. So chemistry issues due to them not being a team for that long during this Challengers finals was imo made up for by the difference in quality Yay brings to the table.
That being said, they probably due have the most potential in the region but one could reasonably argue the team's talent is comparable to the next direct "rival" to SEN
Asuna=Yay
Ethan=Victor
Nitr0=Marved
Hiko<Crashies
Steel>FNS
Whether you agree with the player comparisons or not is entirely up to you but the fact that it is not outlandish is proof enough that at minimum they are comparable.
All this to say I really can't see anyone beat SEN in NA for quite some time
just having the best player isn't really enough to always win, there's enough inherent randomness in the game that having a player of a similar caliber (someone like asuna to tenz) will be enough to make an even matchup
sens major strength is having an igl with high fragging power, because most other teams either have shit IGLing or a good igl that is a liability for the team mechanically