2. Logan Ryan, Free Agent
Ryan, at 32 years old, now, is clearly a slot corner/safety type at this stage of his career. He missed time with an injury while playing for the Tampa Bay Buccaneers last season, but during appearances on NFL Network in the last month-plus he has hinted teams are interested in signing him and it seems he's ready to go if/when the opportunity comes.
Ryan is versatile, starting his career as a cornerback before making a late-career transition to safety. He has played the slot corner/safety roles at a high level as he has aged, and he'd surely be an upgrade over Harris. If it's only as a veteran backup to Branch, fine. As much as the Lions coaching staff loves what Harris brings to the table, if he has to play a lot of defensive snaps things are not going well.
If Branch trends toward missing more time beyond Sunday, the Lions may have to think about doing something to add a noteworthy piece to the secondary. The percentage chance they sign Ryan seems very low, but he is an interesting possibility to consider.