Not all NFL dreams are dashed once the rosters are trimmed to 53 players. A maximum of 10 hopeful prospects can be added to the practice squad, so long as they don't have an accrued season (active for six or more games), per the league's collective bargaining agreement.
There are a couple convoluted exceptions to this rule to add older players with accrued seasons, but they aren't necessary for our discussion here. Besides, nobody wants to sit through a contracts lesson.
So when you click through, you'll find six current Lions who could be prime candidates for the practice squad.