What is David Stearns starting pitcher rotation philosophy?

While Stearns has done a good job building a pitching staff in 2024 and hopefully 2025 without signing big names for big money, is he never going to sign a free agent top pitcher? Does he just not believe in giving pitchers big money with multiple years or is he waiting for young pitchers in the system like Sprout, Scott etc. to take the rotation spots? At least he brought back Sean Manaea.