Under Mauricio Pochettino, Kane showed brief glimpses of expanding his game, occasionally dropping deeper and spreading play, though at no more of a rate than once a match or sometimes less. It was only when Jose Mourinho took the Tottenham job that his game diversified to an extreme extent.
Pochettino's Spurs were built on principles of pressing and progressive passing, but Kane suffered lengthy injuries in all of 2017, 2018 and 2020 that reduced his mobility and efficiency at leading that press. Mourinho's inverse game plan of sitting deep and hitting teams on the counter was made all the more palatable by his striker's change of physical profile. If Kane could occupy defenders and drag them away from their line, then others could dart in behind and take advantage.
After Tottenham beat Manchester City 2-0 in November 2020 to go top of the Premier League, Kane explained what Mourinho had asked of him: "Mainly just to hold up the ball. Especially when you're under the cosh a bit. Just winning fouls, trying to bring others into play. On the counter-attack, if I'm the line dropping deep, then I know I've got runners in behind. Thankfully we took advantage of that."
On that day, Son Heung-min and Giovani Lo Celso were the scorers, but Kane was the one named Player of the Match by host broadcaster Sky Sports, with Gary Neville even proclaiming there were shades of Zinedine Zidane about him. Speaking post-match, Mourinho said: "Maybe he will be responsible for everyone that loves football to change the way people look at a striker. The tendency is to see how many goals a striker scored - you are as good as how many goals you score. There is a Golden Boot for that. But a striker can be man of the match - I don't know who was responsible for giving him that award but I praise them - as a striker can be the man of the match without scoring."
Kane ended the 2020-21 season as the second player in Premier League history after Andrew Cole to record both the most goals and assists, taking home the Golden Boot and Playmaker awards. There's an obvious reason as to why moving him deeper full-time is tempting, but that negates what else he brings and how he creates space for himself and others.