I would say that's a fair assessment i mean when i originally i posted the tweak i said it was for a top 6 team. I mean teams i have had success with is teams like Benfica, Fiorentina, Ajax, PSV and Valencia. That being said though i think with lower than a top 6 team that playing a transfer market a bit can still get you the right people to make a considerable push with this and make it work.
Take my Fiorentina game for example i sold Cuadrado right off the bat and got 27 million for him with this i bought like 6 players youngsters and good ones that work in this tactic like one of the Romero's in midfield, Depay up front just to name a few. I think with a lower team that signing's are vital who you buy does really matter.
The thing is thought once the stars align your team is a mountain of an attacking threat up front and will cause the best teams a lot of problems.
Under normal circumstances and previous FM's this would be my perfect tactic as I generally enjoy building up a good squad over a few seasons and turning them into the best. Sadly FM15 has all but ruined this way of playing as it is so easy to over achieve. I cannot get past 2 or 3 seasons in this version because after a couple of years there is nothing left to achieve.