I think that, to be Major Update, it really have to be impactful on the game, if the BB Staff says its minor, is because it doesn't really impactful the game.
My First thought, is that the new Trainer should give train, or a percentage, to all players on the team that have 18/19 years old, so that all players receive a bit of training and minor Nations have players trained automatically. If it just give a small boost, people have to consider to pay 1 more trainer to have 1 or 2 pops in the end of the Season, is it worth it? Let's try to figure out it.
Actually, I think, even a low percentage, that psychology and Nutritionist will impact a lot on the game, specially on Nutritionist, if it keeps the Stamina all the season it starts for not being "bad", and if it gives a bit of Stamina, lets say, 1 or 2 pops for Season, it is completely worth it, really impactful and is a must on every team.
I think its a good update, is good that the Staff is considering change things that are still for along time and are not afraid to change it. A lot of things still have to be considered to change, like the biddings, but for that we will have to wait more time.
Hope everyone a good game and good Pops,
Cheers,
Baverone