However, few of those acquisitions hit the ground running and poor performances led to Andre Villas-Boas' sacking in December.
Successor Tim Sherwood has not fared much better and Holland manager Louis van Gaal has been widely tipped to come in this summer after a season in which Levy admits the team "have not lived up to expectation".
The plan for the summer is to recruit players in "key positions" but avoid wholesale change in the squad.
"We have come far in the last decade - we have raised our expectations from a club aiming to be in the top half of the table, to competing in Europe each season - to the point at which we find ourselves disappointed if we don't make the Champions League," the Spurs chairman said on Wednesday.
"This season we have had to make significant changes, both in respect of coaching and playing staff and yet we are currently only two points less than last season's tally.
"Whilst this season's performances and results have not lived up to expectation, we believe our squad has potential and it is important that we all now show commitment and teamwork to get the best possible finish to the season
"
Meanwhile, centre-back Younes Kaboul has rejected talk he could swap Tottenham for Arsenal this summer
A report on Wednesday suggested the French defender was ready to follow in the footsteps of Sol Campbell in leaving for the red half of north London.
However, Kaboul quickly ruled out that prospect on Twitter, posting via his account, @YounsKabs4: "I can confirm 100% that the rumour about me joining Arsenal is not true!!! #coys"
Source : PA
Source: PA