Ronald Darby Landing Spots: Top 5 teams that should make a move for Super Bowl-winning CB 

#4. San Francisco 49ers

San Francisco 49ers v Arizona Cardinals - Source: Getty

Shortly after firing erstwhile-coordinator Nick Sorensen in the wake of a collapse from NFC Champions to dead last in the NFC West, the San Francisco 49ers have expressed a willingness to change their defensive scheme.

They have been running a 4-3 defense for years now, but the ongoing defensive revolution has seen the rest of the league pivot towards nickelback schemes. Perhaps Darby can take on that role, while youngsters Deommodore Lenoir and Renardo Green man the corners.