4. Jordan Marshall
Now hear me out. I know the Cardinals' backfield is already loaded with running back talent, and if the room stays healthy, it could be one of the best running back groups in the nation. But there are a lot of things that must go right. Going after Marshall would give the Cardinals another elite-tier back that could strengthen the depth chart.
This season, Marshall had 932 yards rushing on 150 carries. That means the sophomore running back ended the year with a 6.2 yards per rush average. Marshall could also finish the job, as he led the team in rushing touchdowns with 10 on the year. He was also used in the passing game as he caught nine passes for 92 receiving yards.
This back who can do it all will be better on the Cardinals roster than not. At worst casenario he is a filler back when injuries occur, but he would have a real chance to get meaningful playing time.