Yes Mason Mount needed some time to adapt to Ten Hag's style of play, which is natural considering he needs support and I think what is really important is the emotional connection between the players.
Pre season games are pre season games; they do not mean anything; and they are only used to build up each individual players fitness; build chemistry between players and prepare the team tactics ahead of the new season. I believe Mason Mount and the other guys performance will improve as the pre season games kick in.
Important season ahead for Manchester United
Pre-season matches are also very important to test several formations with new player compositions for a club. To then be re-evaluated before the actual season begins. I personally see that Mount has been able to adapt well there. Even in the friendly match with Leeds, we can see that the Manchester United players seem to have been able to build good chemistry. as evidenced by the good accuracy of passing the ball between the Manchester United players. And Erik Ten Heg also seems to have high hopes for Mount and I hope Mount can also fulfill ETH's hopes.
Tottenham have been holding Kane for a long time. Even today Kane has become the all-time top scorer at the Tottenham Club. Kane from young until now has not really had experience outside the English club. Even though he has extraordinary talent that can bring his career to a greater height when he joins Europe's strongest clubs such as Real Madrid, Bayern and many other clubs that are trying to get Kane. But Tottenham seem to really rely on Kane too much. so Tottenham doesn't seem to want to lose Kane no matter what. The issue of Kane's desire to leave Tottenham has started to appear since 2021/2022. But so far no club has succeeded in bringing Kane out of Tottenham.
Kane's lingering transfer is very much of concern to many football fans knowing how good a striker Kane is but yet hasn't achieved much in Europe with such talent unlike his counterparts in the EPL due to the clubs they find themselves.
Another side of the whole story we need to consider is Kane really keen to leave Spurs? Cause for a player that wants to leave a club there are ways he could express it in the field of play even if he doesn't want to speak out and the club management would understand it's time to unleash him. This is a brighter window opportunity for him Kane to leave to UCL competitive clubs as after now these clubs may never return for him next season as better players are evolving on a daily as options.
If Kane wants to leave Tottenham then of course this season is the right time. because in the following season Kane's age was also getting older. And of course there will be fewer and fewer who dare to make high offers for themselves. Next season he will be 30 years old. even though this age is still young, Kane still has to leave Tottenham faster if he wants to pursue a more glorious career.