I think it's a good idea if 3 conditions are met:
1. The team, having access to their medicals, is not worried about Alzolay and Merryweather for next year beyond the general worry you have around hard throwing relievers
2. The team is going to embrace the 2nd half youth movement in the pen. I want at least 3 and ideally 4 of Hodge/Bigge/Palencia/Kilian/Roberts/etc. in the pen at any given time, and use the opportunity to give those guys leverage opportunities even if they haven't totally earned them
3. Most important, and to your point, Leiter needs to return something legitimately fun. Wesneski and Brown were not super highly rated in preseason lists, but both were mid-breakout when we acquired them and after a few hours of sleuthing it became clear they were very very legit returns. I want someone back who we're all like "Leiter's great but if you can get THAT for a 33 year old reliever you totally have to"