Sam Allardyce said he loves figuring out how to stop the league's biggest teams after guiding his West Brom side to 1-1 draw against Liverpool at Anfield.
Sadio Mane put the Reds in front after 12 minutes in a half when Jurgen Klopp's utterly dominated possession and territory.
However, the Baggies grew more into the game after the break and snatched an unlikely point when Semi Ajayi headed home Matheus Pereira's corner on 82 minutes.
Klopp admitted he had been caught out by the striker-less 6-4-0 formation employed by Allardyce and the former Everton boss told talkSPORT Breakfast that the system has been honed over a significant period of time.