Ridiculous tactic
Altered it slightly due to not really wanting to sell strikers
Changed one of the SS to a Complete Forward and put the SS direct in behind
Tested with several teams, Ajax, Bayern, Real, Levante, Spurs and Chelsea, all won league at easE bar Chelsea but won FA and League Cup with them and somehow finished 5th.
Lets in very few goals, most was with Levante at 29. Ajax I won all 17 home league games and conceded just two
Only gripe is if behind, alterations to mentality seem to disrupt tactic and not have a good effect but very rarely behind anyway.