Arf!
Since taking over the club, this "bang average, mid table director with a massively overinflated reputation" has taken Spurs from a perennial lower mid table club that had fallen light years behind the top clubs to one that is now firmly established among the top six at least - and now starting to challenge seriously for major honours. He has done so while battling against overwhelming financial odds in the other clubs' favour.
Besides the first team, he has overseen the transformation of the club's academy from one that was unproductive and woefully neglected under Sugar to one that is now among the best, and certainly among the most productive in the Premier League. He built a new £75m training centre that is also among the best in the country. And the team will move into a superb new stadium just over a year from now. All of this while keeping the club on the financial straight and narrow.
Mocking Levy for some poor signings is failing to see the wood for the trees. Of course there have been setbacks and failures during his time at the club. But the overall consequence of his leadership is a club that is in a far, far better state than it was and has far, far better future prospects than it did when he took over.
Okay, so you don't like Levy. Fair enough. But to dismiss him as you have is just plain silliness.
Just to be a little less cavalier with the figures, the actual prices were:
Lamela - £26m, rising to £30m
Janssen - £17m
Son - £22m
Sissioko - £30m