Leicester won the league!But eventually it doesn't work, the transfer market is imperfect....there's no ponzi scheme beyond the top
You need to keep your best players to get to the top
Leicester's model never breaks into the elite
Atletico Madrid, sellers of of FOUR 50MM+ players in the past two years are (no jinx) about to win the league.
Liverpool sold their talisman and won the league and Champions League.
Chelsea have improved and are in a CL final having flogged off their best player.
There was a time when the "selling club" thing was real. That's over. Opportunistically selling top talent for silly money is a part of what any smart club is doing now.
What you CANNOT do is sell players and then let your squad capital decline through disinvestment and/or poor recruitment, both of which Spurs (and Woolwich) are up to their eyeballs in.