Jackson gave Aston Villa an early lead and struck again after Erling Haaland had equalised, securing a significant victory for Unai Emery's side and ending Manchester City's perfect start to the league campaign.
Cash had his own contribution to make, with the Villa defender tasked with dealing with the threat of Jeremy Doku. He said the preparation involved studying the winger before the match, but stressed that individual responsibility was just as important as following the manager's instructions.
“The manager gives us tasks but you have to take responsibility too, I do a lot of work on wingers, I think as a full back you have to try and get aggressive and it makes them difficult for them. I thought I did my task well. Getting close to him is the biggest challenge. I was watching clips of him this morning.”
Cash was also full of praise for goalkeeper Zion Suzuki, whose saves helped Villa protect their lead as City pressed for another equaliser.
“He's brilliant, his first session when he came in, in the possession drill I thought we'd signed a midfielder. His vision is unbelievable, he catches crosses really well which as a full-back is a dream.”
Jackson's finishing was decisive. He opened the scoring in the sixth minute after John McGinn capitalised on a mistake by Marc Guéhi, then restored Villa's advantage in the 60th minute by converting Ibrahim Mbaye's low cross.
Cash said the striker had quickly impressed his teammates.
“Everyone has been really impressed with him. His quality is unbelievable, as a striker he wants goals and he's getting that.”
Jackson, speaking to BBC Match of the Day, was pleased with the result and the collective effort behind it.
“Important win. We got the win today, fought very well as a team and very happy.
“Just trying to work for the team - try to finish and score goals for the team. Very happy with the two goals, and the win is the most important.
“We know they are a very strong team. They have some of the best players in the world and its not easy to play against them. We tried to play with personality.”
The striker's second goal had a personal connection. Mbaye, who came off the bench, is also a Senegal international, and Jackson said their understanding helped create the decisive moment.
“We always talk, being from the same country we are very close. So when he came on I told him to run and then it just happened and I finished, very happy that it came from both of us.
“Happy with the players, manager and team. Incredible dressing room. Very happy to be here.”
Cash also reflected on Villa's progress after a difficult start, when changes to the squad meant the team needed time to settle. He made clear that Emery's continued presence was central to the club's ambitions.
“We had a lot of change at the start of the season, it was going to take time to gel and get comfortable with each other. Unai Emery is brilliant, having him stay is the main priority for us.”
Jackson echoed that admiration for the manager, having previously worked with him, and said he hoped they could build something together.
“He has the same passion and hunger for success. He believes in me, in everybody and happy to be with him again and hopefully we can achieve things together.”
Villa's win was built on Jackson's clinical finishing, Cash's defensive work and a collective effort to withstand City's pressure. For both players, the result offered evidence of a side growing in confidence under Emery.