Mauricio Pochettino has constructed the best Tottenham Hotspur team since the 1980s and one with the potential to eclipse all but Bill Nicholson's Double team.
He has done so in under two seasons, having overseen a huge shift in the playing staff, style and ambitions of the club.
For 10 years before Pochettino's arrival, fourth place was the highest for which the club could realistically aim.
That was achieved only twice in that period, and that decade represented Spurs' best spell since the creation of the Premier League in 1992.
His influence cannot yet be measured in trophies, but Pochettino has gradually introduced a new playing style, chipped away at a rusted-on mental weakness and shattered expectations.