It's a fearful prospect for opponents... the two elite coaches who masterminded the most prominent winning runs in sport over the past year have been trading secrets.
England Rugby's Eddie Jones and Chelsea manager Antonio Conte - whose sides are dominating their respective competitions at present - caught up for a chinwag at Pennyhill Park on Wednesday.
The meeting brought together the Australian who has presided over a 16-game winning streak with the English national side and the Italian who has racked up 13 in a row with the Blues of west London.
Pity the poor coaches trying to pit their wits against their collective brainstorm.