It’s really not a difficult conceptThe player who played 2nd most minutes last season was Kulusevski whose minutes were equivalent to 38 games out of 60 games in all competitions last season.
Just 11 players played enough minutes to be equivalent to 30 or more games last season (ie more than half games)
So we need a fairly large squad, not just a first 11, and to do that in CL we need to include players who are CL and/or List B (u21's who have been at Spurs for more than 2 years to get above 21 players (17 overseas and 4 HG).
The whole concept of a first team player has gone out of the window : I doubt if what most thought our first team last season played together more than 6 games (out of 60) due to injury, need to rotate or otherwise not available.
Buying someone you think will go into the first 11
