There's no way of sugarcoating it: the Tigers' 2025 trade deadline, outside of the acquisition of Kyle Finnegan, was a complete failure.
After their late-season slide started before the All-Star break and continued closer to the trade deadline, they acquired pitchers Finnegan, Chris Paddack, Charlie Morton, Rafael Montero, Paul Sewald, and Codi Heuer.
Paddack was demoted to the bullpen after five starts (and a 5.40 ERA), Morton was DFA'ed after nine starts (7.09 ERA), Montero was decent but never trustworthy, Sewald was on the IL until mid-September, and Heuer pitched just 3 1/3 major league innings before being released in September.