I hear you and I agree on most. Maybe you don't mean to but I've read your posts for a while and it comes off like the Sox are geniuses and Coppy is avg at best. I don't think that gap is there.
I can list 10 things easy that I don't like that Coppy has done or is doing.
Attaching BJ to Kimbrel was a big mistake. It's even bigger when you consider they signed Neck with most of that "savings."
Not selling high on JT could be as bad as not selling high on Jurjens. We don't know yet. My issue with harping on the Tehran no deal is that we don't know what he's said no to. Last year I wanted JT traded but I wanted a haul for him. I was looking for 1 of Monchada, Devers, Kopech from the R Sox. I don't think that was offered. Reading around most people do not value Tehran as a TOR starter. For years guys like Dave Cameron have been calling him a 4-5.
I think Tehran is more valuable to the Braves then the return for a 4th starter. If that is what they get offered then I'm keeping JT until the winter before my penultimate year of JT control. By then I should have 3+ rotation spots filled with trade guy, Folty, Newcombe, Wright, Allard, Soroka, Sims or Gohard.