Harris isn’t going anywhere either, and Dave Dombrowski is still otherwise gainfully employed.
Harris has done an amazing job getting this franchise into a position to be a perennial contender, and well beyond just getting a few decent prospects in the farm system now. It’s really that version of the Tigers he has been building towards, and that version is not here yet, so they’re not about to fire everyone, blow up the franchise, and start over now.
This version was never meant to be the pennant or bust team. This version, last year and this, was always playing with house money. Many if not most of these guys won’t even be here in three years.