Others have said that's crazy so I'm not going to pile on too much, but I'll present it in a little different way.
Adrian Houser has been incredible for the Sox, basically a 3 WAR pitcher in 9 starts. Can't deny what he's done.
Removing those 9 starts (57 innings), Houser has pitched 608 ML innings, holds a career 4.21 ERA and has a total WAR of 2.7 in his career. So in 57 innings with the White Sox, he's put up a higher WAR than his previous 608 ML innings.
So with that in mind, along with him being 32 years old and being on his third team in three years..doesn't the historical evidence tell you the odds of him keeping this up seem incredibly slim? Wouldn't this be buying on him at just his absolute high point? Do you expect Houser to get better than this? And how comfortable are you paying a 35 year old Adrian Houser 20 million in 2028?
Adrian Houser, to me, given where this team is at in their "rebuild" is the most clear cut, obvious trade candidate that I can remember. All of the evidence says he's not the guy you make an investment in. It's incredible what he's done and I hope he keeps it up. And maybe he's fantastic the next few years, it's possible. But he's literally pitching at a HoF level right now, I would not be comfortable paying him at that level based on the totality of data we have on Adrian Houser.