Mike Krack believes there is "no magic bullet" for Aston Martin in the ongoing Formula 1 development war.
Aston Martin has fallen back in recent races to the fifth-fastest team having started the 2023 campaign as the closest challengers to Red Bull, scoring six podiums in the first eight races.
However, the team has not been in the top three since the Canadian Grand Prix, with an upgrade there hampering the team's progress as they tried to understand it, with McLaren in particular taking a giant leap forward.
There was some encouragement for the team at Spa-Francorchamps in the Belgian Grand Prix as Fernando Alonso finished fifth, to ensure the team head into the summer break firmly in third-place in the Constructors'.
But Team Principal Krack has warned there is no such thing as a "magic bullet" when it comes to developing the AMR23.
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"You must avoid bringing upgrades for the sake of bringing upgrades because that is very easy," Krack told media including RacingNews365.
"Then you burn precious cost cap money, so it is important that you understand what you are doing before you do it and it is credit to a lot of good people that we have an option to wait an event more rather than just throwing [upgrades].
"The magic bullet? I wish I could confirm that.
"We have a development plan, and it was based on continuously developing the car and we will follow that.
"Obviously, you need to see what directions you will take, depending on what happens, but all in all, we have this development race.
"I said from the beginning of the season we have now an opportunity after 12 races to take [stock].
"We have 10 times more points than we had at this stage last season, and we are P3 in the championship, so expectations rise with your results, but obviously, you must not forget where you come from.
"In all the push for development, we also have to realise that we have made big steps and that it is important to zoom out and see what you have achieved."