The 2 hot GM candidates right now is Rick Smith (former Texans GM who was GM before he had to leave after 2017 as his wife was sick) and Monday Night Football announcer Louis Riddick. A former NFL player Riddick has worked in front office of Washington and Philadelphia. Working his way from a scout for both teams to becoming Eagles director of pro personnel from 2010-2013.
Since that time Riddick has became an announcer and drew a lot of attention from teams and this year is a hot candidate for teams. Detroit itself spoke of hiring someone with experience to get a head coach under 1st year owner Sheila Ford Hamp.
Houston also interviewed Riddick but a major issue is the team is hamstrung by the team having no 1st and 2nd rd picks in 2021 and the team having a terrible salary cap situation coming next year. The team will have a hard time finding a GM who has to try and get a young team through 2021 to get past that season.