Even with Greinke's recent string of bad starts (which could be injury related) he has still had better results this year than Morton and our combined 5th starters. We're lucky Wright figured things out, otherwise it would be Max and Ian and pray for rain. We'd easily be 3-4 wins better with Greinke in the 5th spot than Davidson, Ynoa, etc. And Archer is still doing pretty decent too.
And Grienke would have exhausted our available cash while not being reliable enough to start in the playoffs.
Brave have known this was coming with Wright for over a year. They were very comfortable with throwing him out in the rotation to start the season. This didn't just happen overnight.