You should be fine with 38min, just make sure there is another flight to PIT that day
Reverse question to you: I have a 42min connection in SLC in late Jan flying DTW-SLC-SEA all on mainline on a thursday evening. Doable? As a back up they have a 757 service later that night, so I should be good...
BTW, does anyone know what the legal MCT in DTW is?