With the NFL's coaching shuffle in full swing after a rash of firings across the league, a lot of interesting possibilities have opened up for the San Francisco 49ers.
Head coach Kyle Shanahan could potentially turn a longtime nemesis into a key ally.
The Cleveland Browns unsurprisingly fired head coach Kevin Stefanski after a brutal season in which the team went 5-12. That likely means defensive coordinator Jim Schwartz, who has had Shanahan's goat throughout his career, may now be a free agent.
Whenever Schwartz and Shanahan have gone toe-to-toe over the years, the former Detroit Lions head coach has always seemed to get the better of the offensive play-caller whom many consider a genius.