Jose Mourinho and Antonio Conte, the past two Chelsea managers, both endured moments of gloom-laden reckoning at home against Eddie Howe's Bournemouth.
For Maurizio Sarri, therefore, this victory constituted the evasion of a banana skin and particularly after an afternoon which for a long time threatened to curtail his side's perfect start to the Premier League.
Late goals from Pedro and Eden Hazard saw to that and ensured that this game was not to be filed away alongside Mourinho's 1-0 home defeat in the grisly autumn of 2015 or Conte's 3-0 reverse in this fixture in January this year.
Pedro celebrates scoring for Chelsea on 72 minutes as they finally broke down the stubborn Bournemouth resistance
Chelsea had to be patient in order to open the scoring at Stamford Bridge but Pedro came off the bench to do just that
Pedro picks his spot after taking a pass from fellow substitute Oliver Giroud to hand Chelsea their second-half lead
Despite the close attentions of a number of Bournemouth defenders, Pedro was able to finish into the bottom corner
Indeed, the new manager Sarri will take deserved credit for the introduction of Pedro and fellow forward Olivier Giroud, who combined beautifully to carve the winning goal.
Yet this was by no means a perfect Chelsea display and the flaws in their performance underlined Sarri's views in the matchday programmes that more time and work will be required as he looks to reinvent the Chelsea wheel, altering the way his players perceive the game and express themselves on the field.
Chelsea did play reasonably well here, striking the woodwork and forcing a couple of excellent Asmir Begovic saves before Pedro's breakthrough, yet the away team never appeared overwhelmed nor under siege.
Instead, as Chelsea toiled in search of a goal, Bournemouth grew in confidence. Indeed, Eddie Howe will feel his team enjoyed the clearest sights of goal, as both Callum Wilson and Nathan Ake missed guilt-edged opportunities from point-blank range when the score was tied, while Ryan Fraser also curled wide when clean through on goal with his side a goal down.
Chelsea (4-3-3): Arrizabalaga 6; Azpilicueta 6.5, Rudiger 5.5, Luiz 5.5, Alonso 7; Kante 7.5, Jorginho 6.5, Kovacic 7 (Loftus-Cheek 79); Willian 6 (Pedro 65, 7), Morata 5.5 (Giroud 61, 7), Hazard 7.5
Substitutes not used: Caballero, Barkley, Zappacosta, Christensen
Manager: Maurizio Sarri 8
Scorers: Pedro 72; Hazard 85
Booked: Alonso, Kante
Bournemouth (3-4-3): Begovic 7; Francis 6, S. Cook 6.5, Ake 6.5; A. Smith 6 (Ibe 80), Gosling 6.5, Lerma 6.5 (L. Cook 87), Rico 7; King 7 (Mousset 80), Wilson 6, Fraser 6
Substitutes not used: Boruc, Surman, L. Cook, Brooks, Mings
Manager: Eddie Howe 7
Booked: Gosling, Lerma
Referee: Lee Mason (Lancashire) 6
Eden Hazard's heat map for Chelsea during the game with Bournemouth. CLICK HERE for more from our match zone service
Once again, this was a Chelsea match that entertained, played at high intensity and with breathless zip, but while Sarri-ball fleetingly thrilled when going forward, there were more jitters to be found going the other way.
There is an enduring weakness in the centre of Chelsea's defence where there were more helter-skelter moments on the David Luiz funfair ride, particularly when the Brazilian carelessly conceded possession in his own half and needed to be bailed out by the outstanding N'Golo Kante as Bournemouth bore down on goal.
Antonio Rudiger is cut from a similar cloth and the German was fortunate not to concede a penalty when he stepped across Fraser's path when Chelsea had only a one-goal advantage.
Sarri wants Chelsea to play with daring adventure but there will be cracks in the road and nerves on the terrace. The defensive line is uncomfortably high, on the brink of self-harm, and a team more clinical than Bournemouth would have scored at least one goal here.
Eden Hazard celebrates scoring Chelsea's second goal of the