The last time we followed the model closest to the one we are currently on, we ended up getting very close to winning things, including a CL final
Whilst I agree with the rest of your post I'm not so sure that so called "model" was what got us there. What we had was the perfect storm of a few absolutely class players coming into their prime (Eriksen, Mouss, Verts, Lloris) and a few good players coached properly to become better than their previous inept and dysfunctional coaches would allow (Walker, Rose) with Kane stepping up as the cherry on the cake. The nucleus of that squad was there before we formulated any coherent and obvious transfer strategy - it was just held back by terrible managers and Poch came along and made us a functioning unit.
I don't credit our near success that to the "model" at the time and if anything exceptions within that model pushed us further e.g. Buying an indisputably class, senior player like Alderweireld.