The best tactic i've used in about the last 3 years of FM no joke, I had two managers going one at PSG one at Lens, PSG was moneybags, Lens was homegrown talent, using this tactic PSG won the Champions league, ligue 1 twice, french cup, euro super cup ect, Lens won ligue 2 and then finished 3rd...
Title is a bit misleading, Moved from Swansea to Chelsea and this tactic looked to suit my Chelsea team but it didn't really work out, was decent at first 5 clean sheets in a row, but only won 2 games, 3 0-0's, but then i lost 7-2 against Aston Villa, glad it works for other people though :)