For all the intricacies of modern football management, Eddie Howe argues that the fundamental values remain the same.
To that end, his and Pep Guardiola's absolute immersion in their trade is the key to success, says the Newcastle boss.
The younger man has even read his opposite number's book - Pep Confidential - in a bid to extract the tiniest detail to aid his work.
Howe has transformed Newcastle from relegation fodder to comfortably mid-table
'It's very different, but the fundamentals are probably the same,' said Howe, exploring the changes in his profession during his 27 years as player and coach.