I'm not especially high on Assad. The FIP beater stuff doesn't have a lot of the associated contact management numbers you typically look for to assure yourself it's real. We're well past small sample size but I still don't trust it, and based on their leaving him off the playoff roster entirely clearly the team doesn't either.
I will say Assad did pitch well in a less ambiguous way in '23. He was more of an actual swingman and also had more velo (~93 as a starter and approaching 95 in short relief). I don't know what it takes to get that velo back, was his issue this year simply the oblique killed his conditioning? But if he gets back to that higher velocity I'd be more comfortable handing him the ball in a game of consequence.
Ultimately I think his fate is tied to Brown and Wicks. They each have minor league options so you dont *have* to do anything, but broadly my thought is with the three of them it's a choice of "bullpen one, trade one, stash the other at Iowa." Setting aside what they'd each return in trade IMO the clear preference is Brown in the pen, Wicks at Iowa, Assad traded.
And a trade should actually bring back something nice? The market for back of the rotation SPs is popping off. Adrian Houser just got $11M (!?!). Assad, especially with his minor league options, should have some actual honest to god value.