There aren’t a lot to choose from, but ESPN’s John Clayton listed the NFL’s 10 biggest inseason trades and the Lions were involved in two of them.
No. 5 was the trade of quarterback Bobby Layne to the Steelers in 1958 for quarterback Earl Morrall, a first-round pick and a second-rounder. Morrall, who played at Michigan State, was with the Lions until he was traded to the Giants in 1964, but won greater fame with the Colts and Dolphins.
No. 6 was Martin Mayhew’s first deal after replacing Matt Millen as general manager, the trade of receiver Roy Williams to the Cowboys for first-, third- and sixth-round picks. Those turned out to be tight end Brandon Pettigrew, receiver Derrick Williams and running back Aaron Brown. The deal has been called the worst in Cowboys history by several writers.
No. 1 on Clayton’s list worked out better for the Cowboys — Herschel Walker to the Vikings.