The Lions are looking into help at running back. On Tuesday, the Lions auditioned Charles Sims, Terrance West, and Michigan product Fitzgerald Toussaint, as Dave Birkett of the Detroit Free Press tweets. 
The Lions already have solid depth in the backfield with rookie star Kerryon Johnson, power rusher LeGarrette Blount, pass-catching specialist Theo Riddick, and former second-round pick Ameer Abdullah under contract. It’s possible that one of those reserve RBs are injured, but it’s also possible that the Lions are simply updating their emergency lists in the event of an injury.
A former Buccaneers passing-down back, Sims has auditioned for the Texans, Patriots, and Jaguars over the last few weeks. He’s shown flashes of ability during his run in the NFL, especially during a 2015 campaign in which he caught 51 passes for the Buccaneers.
West was initially signed by the Saints back in June after Mark Ingram was hit with a four-game suspension, but he was cut loose in August. The 27-year-old appeared in only five games (four starts) with the Ravens last year, but he had a great 2016 with Baltimore as he racked up 1,010 yards on offense and six touchdowns.
Unless someone is injured this makes no sense. If anything Johnson needs more touches