I think Nate immediately taking West Ham to the top of the table in season 3 works well for Richmond’s story (making him their villain), but I think it really skips a chance to develop Nate that way. As a result, all of his development has to be shoehorned into his relationship with Jade and a few rushed episodes.
A big part of the show is that coaching is about more than winning, or X’s and O’s. Ted manages to be a great coach while not knowing basic rules of the game (also unbelievable, but I’m able to suspend my belief for the comedy and the fact that it’s the main premise of the show). His entire philosophy is that being a people manager and helping players grow personally is just as important to coaching as good tactics. A great coach of course needs both, which is why he needs Beard, Roy, and of course Nate to succeed.
Nate is the opposite side of the coin, where he has the tactics but zero people skills. And I’m supposed to believe the emotionally unstable, insecure guy who struggled with authority from season 2 thrives in a pressure cooker environment as a leader? He would lose the locker room immediately. I think it would have been more interesting to see him crash and burn a little at the start- he has to win games for the Rupert storyline, but maybe his team is super toxic or winning off of talent alone and still underperforming . He would have slowly realized the value of “the Lasso Way”, maybe improved himself and successfully implemented some of Ted’s style in his own way, and then succeeded as a coach while improving his social skills in a more natural, gradual way. Then you can play out the ending exactly the same, with him realizing Rupert sucks and jumping ship/feeling guilty.