Stroll has struggled all season to match the form of team-mate Fernando Alonso, although circumstances have also often hampered his weekends, such as the team's decision to keep him out on slicks during the wet early laps in the Dutch GP.
Paddock gossip has suggested that Stroll might be considering his future as an F1 driver, although he has laughed off the idea that he might move into tennis.
It is understood that Aston Martin Group CEO Martin Whitmarsh has been sounding out frontrunning drivers, adding to question marks over Stroll's longer-term future in the camp, although it would be logical for any team to be looking at the driver market for 2025 and beyond.
However, Krack insisted Stroll will be alongside Alonso in 2024.
"It's Monza, it's driver silly season and it's a bit boring at the moment," said Krack. "I think we don't have any such debate at the moment. We will be fine next year with the two drivers."
Asked by Autosport about Stroll's commitment, he said: "I think we have seen over the last week a very hard-working driver, trying to analyse every little detail where he can improve, being in the simulator, driving a lot, so I think there's nothing that goes in that direction."
Krack stressed the margin between Alonso and Stroll is not as big as their results might suggest.
"There is not a marked gap in performance, there is a marked gap in points," he said. "And then it's important to separate between the two. We as a team are analysing the season, from both perspectives, from both drivers.
Source: Autosport