I'm not attacking you personally whatsoever. In fact, I'm not attacking you at all, and I appreciate the article and the discussion it provokes.
I just completely disagree that Eflin is a clear upgrade over Lauer and Ashby, when that's far from the case. Over the past two seasons, Lauer has thrown 277.1 innings with a 119 ERA+ and a 3.7 bWAR. Eflin, meanwhile, hasn't even pitched 200 innings and has been just barely over league average in those innings with a 101 ERA+. Yes, his FIP is better, largely due to Eflin's superb walk-rate, but FIP evens out over the course of multiple seasons, and the best ERA Eflin has posted in his career was 3.97 during the pandemic-shortened 2020 season. Moreover, Milwaukee and Philadelphia are virtually identical in HR and wOBA park factor. So, it's unlikely that Eflin's ERA would improve that much.
Again, Ashby is young and as talented as any pitcher we have. He needs to develop in the rotation at this point. And, even despite his youth and inexperience, his projected stats for next season are better than Eflin's.