Such perspective helps explain why Jaissle has embraced a huge task at Newcastle after he was parachuted into the hotseat just a few weeks before the start of the season.
It has been another turbulent summer on Tyneside after head coach Eddie Howe stepped down and key players Bruno Guimaraes, Sandro Tonali and Anthony Gordon left the club.
However, Jaissle sees an opportunity, refusing to “waste energy” speaking about the game’s financial rules, which have limited their overall spending power and heightened the need to trade.
“I like challenges,” the ex-Al-Ahli and Red Bull Salzburg manager said. “I try to see in all challenges the chance in it, so therefore I’m here.
“Of course you can complain about the timing, the big transition, all the sales the club did, but we will not.
“We will have no excuses.”
Newcastle have made six signings in Lukas Hornicek, Ewen Jaouen, Amar Dedic, Sean Steur, Aladji Bamba and Bazoumana Toure, but the new arrivals are all aged 24 and under and will need time to adapt to the physicality and intensity of the Premier League.
Further reinforcements are clearly required and Jaissle is “confident there will be changes” before the summer transfer window shuts on 1 September.
The German remains undaunted despite a number of pundits predicting a season of strife for his side.
“Everyone is somehow against us or do not think we can play a good role in the Premier League,” he said.
“We will try to convince them in a different way that we are able to.”
Central to that aim will be “sticking together” in an echo of the words Howe used throughout his four-and-a-half year reign.
Jaissle quickly reached out to his predecessor, who ended Newcastle’s long wait for silverware by winning the EFL Cup in 2025, and also qualified for the Champions League on multiple occasions.
Although Jaissle wants to keep the details of their conversation private, he said he has “huge respect for what he did and what he built”.
“What I can say is he’s not only a great manager,” he said. “He’s also a great human being.”