Play like this on Sunday and Arsenal will rip them apart.
The one saving grace for Spurs is that they cannot possibly perform any worse than this.
The ferocity of Mauricio Pochettino’s hairdryer both at half time and after the final whistle does not bear thinking about.
After all the hype his men turned up for a Champions League tie they had to win and played as though they had just met.
Time and again over the past few weeks Pochettino has insisted that the Wembley stage fright that cost his side in their Monaco opener back in September had been a blip.
To be fair to Spurs they have been better away from home with displays of resilience at CSKA Moscow and in Leverkusen.
But this? They looked like rabbits caught in headlights in their first game back at the national stadium.
Never mind the 85,512 crowd, a new English club record. Most of those still in the ground booed Spurs off at the end.
Leverkusen , playing for the future of the manager Roger Schmidt, should have won by even more goals.
Some Spurs fans had had enough long before the final whistle and headed for the exits. Who could blame them? This defeat wasn’t down to the absence of star men Harry Kane or Toby Alderweireld.
This was down to experienced players inexplicably unable to do the things that had previously come so naturally, so impressively to them in a Tottenham shirt.
At times there were gasps around the national stadium as the likes of Jan Vertonghen, Ben Davies and Christian Eriksen gave away possession cheaply.
Pochettino prowled his technical area with his arms tightly folded glaring at the mess unfolding in front of him. Clearly fuming.
Defeat here is obviously not the end for Spurs. But with CSKA set to rock up in December for their final group game they need to work out what on earth is scaring the living daylights out of them at the national stadium.
The players will insist that the dimensions are the same and that running out here really does not bother them. But the soundbites are meaningless when they serve this up.
The first half was easily the worst Spurs have played since Pochettino arrived at the club.
Players struggled to complete the simplest of passes. Son Heung Min was left isolated up front. The back four struggled to cope with the intensity of Leverkusen’s pressing. And so it went on.
There was a brief respite when Mousa Dembele went off after just half an hour with an apparent injury.
The introduction of Vincent Janssen enabled Son to move out to the left. Tottenham enjoyed a resurgence which culminated in a Christian Eriksen shot straight at keeper Bernd Leno.
Yet the sloppy errors remained and were nearly punished two minutes before the break. Kyle Walker failed to control a simple ball. Sideman Julian Brandt stole in and had his shot blocked. You’d have put your mortgage on ex-Manchester United poacher Javier Hernandez burying the rebound.
Somehow his shot was deflected wide.
Spurs themselves had the ball in the net in first-half injury time. But the effort was rightly chalked off by Swedish referee Jonas Eriksson with a Leverkusen player injured.
The second half was not much better for Spurs. Dele Alli went down theatrically over the outstretched leg of Omer Toprak. The referee dismissed his appeal. Rightly.
Spurs at least then started to match the desire of their visitors with Walker’s surging run ending with an effort narrowly wide.
The unforced errors continued, however, with Dier by Admir Memedi after dwelling on the ball in the 61st minute. Memedi cut the ball back to Hernandez whose first effort was blocked. Again the Mexican looked certain to net with his second only to see it stopped on the line by Hugo Lloris, who had denied him in the away leg.
Yet Tottenham’s incredible luck could not possibly have held out and they were indeed punished.
Pochettino’s men were slow to close down a shot from Charles Aranguiz on the edge of the box. Again, Davies was the chief culprit.
When the shot did make it through Walker could only toe it into the path of wideman Kevin Kampl, who sent it past Lloris from close range.
Dier responded with a free kick against the bar with eight minutes left but the goal - and the point - would have been ill-deserved.
This was a victory for a side that wanted it more. Tottenham have some thinking to do ahead of Sunday.