Quinn was terrible at his job. One or two success stories out of 10. The Lions are much worse off than when he got here.
Plenty of success stories. Then Patricia wanted guys to kill the defense
Offense was super successful
Marvin Jones, Golladay, Decker, Ragnow, Swift, Jonah Jackson, Crosby to an extent, Agnew returns, Stafford extension. Lang was good but injured. Wagner good first 3 years then down 4th year (now good with Packers). Hock big success. All sorts of success but dealt with injuries (Marvin 2 years, Golladay this year, Lang to end his career).
Defense
Flowers, Hand are successes. Romeo Okwara a success, Harrison successful trade but then Patricia ruined him and Harrison is a weird dude too. Slay extension previously success and good trade at right time. AO and Okudah TBD but have shown flashes.
Walker was 2 year success then not this year with position change to box safety more
Harmon a nice trade
Collins solid add (but overpaid)
AShawn had some success. Glasgow had success and then got a new big deal with Denver
Patricia requested slow players plus injuries plus bad scheme that he never adjusted much. Like Trufant could have been a success but hamstring injury all year.
Quinn has some fails in Tabor, Davis (some scheme change and mental, plenty of size and speed), Tavai and Harris and Christian Jones
Nick Williams and Shelton were meh but didn't have the help at LB plus the Flowers injury plus they both dealth with injuries
Coleman and James fails based on contract size.
Quinn is better than you guys give him credit but he had to go with Patricia.