I like everything that you said but the thing that doesn't really make sense is that you think majority of the things they do is done on the fly. Yes i do but don't agree with that because at the start they obviously have a set play for the round/half but when a team "reads" that they're now to come up with something on the fly. Yes he relies on the world class performances from his teammates but at the same time the players were given a set play but was ruined or wrecked due to them dying or getting read. Depending on fundamentals isn't too bad in my opinion cause if its consistently working and your play around with it then its not like your consistently REUSING IT.
When you say BBG and ABX, as of right now BBG are 1-0 against them. Yes SEN were outclassed in that April Match but that was a new BBG, a team we have never seen before but at the same time looking at today BBG haven't been able to do the same to other teams, but that's if "ShahZaM igling" is predictable. Onward to ABX, they are 1-4 against SEN, the 1W they have is a OT 2:0 which was really surprising same as BBG, a new team, with prodigies but I don't think they really adapted to them moving forward. I have nothing wrong with what your saying, I'm just saying what I think!
I agree that a coach can increase the desicion making, strats and flexablity of the SEN roster, letting off ShahzaM doing all the coaching/IGLing"