Frank watched Spurs suffer a third consecutive defeat in a horror week after they conceded twice in the first six minutes at Tottenham Hotspur Stadium – the second after a moment of madness by Guglielmo Vicario.
An early strike by Kenny Tete and Harry Wilson’s sublime lob put Frank’s team immediately on the back foot and despite Mohammed Kudus’ 59th-minute effort, Tottenham have lost four of their last six Premier League games.
This latest bad result at home extended an already disastrous run of results in N17, with Spurs only able to win three of their last 21 home league matches.
The numbers combined with a string of toothless attacking displays means Frank has plenty of questions to answer going into December with scrutiny at an all-time high over his long-term prospects at the north London club.
A spirited display in defeat at PSG on Wednesday had earned Frank a slice of credit back after a disastrous afternoon at Arsenal last Sunday where fans were scathing of his tactics.
Archie Gray and Lucas Bergvall provided green shoots of encouragement in Paris and Frank trusted the 19-year-old duo in what felt a significant fixture early on in his tenure after a rocky run of results in October and November.
Yet before the highly-rated pair had time to make a handful of passes, Tottenham were 2-0 down in shambolic fashion after only six minutes.
Fulham broke the deadlock in the fourth minute when within seconds of a poor header by Kevin Danso, the excellent Samuel Chukwueze cut inside from the left and picked out Tete, who had an 18-yard shot deflected beyond Vicario by Spurs’ Destiny Udogie.
Tottenham were shell-shocked but 136 seconds later they conceded again in a moment to forget for Vicario.
Vicario rushed out to intercept Joachim Andersen’s pass ahead of Raul Jimenez, but instead of knocking the ball out for a throw, he inexplicably cleared infield and Joshua King teed up Wilson to curl home wonderfully.
It was a sensational 40-yard lob by Wilson, but as a result of Vicario’s comical error and the Spurs goalkeeper was heavily booed straight after by the home fans.
Frank’s nightmare also got worse when Chukwueze curled against the post moments later before Danso had to block a shot by Wilson.
Tottenham’s lopsided 4-2-3-1 with no left forward continued to struggle to create chances and only a sensational tackle by stand-in captain Micky van de Ven prevented another Fulham goal as he slid in to thwart Chukwueze, who rounded Vicario after Porro’s lapse in concentration.
It was masterful defending by Van de Ven but did not stop loud boos at half-time and despite no changes by Frank, Spurs returned with much-needed attacking intent.
Randal Kolo Muani had an effort blocked seconds into the second period before a succession of promising openings ended with a poor Tottenham delivery.
When Porro did finally produce a quality cross, Kolo Muani sent his 57th-minute header into the side-netting.
Spurs finally had momentum, though, and the deficit was reduced with 31 minutes left when Bergvall chipped into the path of Kudus and he lashed into the top corner.
Frank sent on Rodrigo Bentancur, Wilson Odobert and Xavi Simons immediately after and the latter had a shot deflected over by Andersen as Tottenham pushed for a leveller.
The equaliser nearly arrived in the 67th-minute when Bergvall flicked on Kudus’ corner, but Jimenez brilliantly headed clear and no grandstand finish occurred after Kolo Muani sent a back heel wide as Spurs lost again at home.