Five 49ers to keep an eye on vs. Eagles in win-or-go-home playoff matchup

Perhaps the best head-to-head matchup will take place mostly behind the scenes and over the headsets on Sunday.In fact, the battle has been taking place all week as two of the NFL’s top minds put together their dueling game plans.The 49ers’ strength is their offense. The Philadelphia Eagles’ defense is among the best in the NFL.And the men running those units are considered among the best in the business: 49ers coach Kyle Shanahan and Philadelphia Eagles defensive coordinator Vic Fangio.Shanahan said he does not expect anything exotic from Fangio because his time-tested defensive scheme is so sound.“He doesn’t need to change up very much,” Shanahan said of Fangio, whom he said he has tried to hire three times to join his staff.“It just naturally changes with how he does his coverages, how he does his fronts, the personnel groupings he does. He’s very good at getting a beat on what you’re trying to do and making you adjust.”It’s the job of the coaches to put their players in positions to thrive. So, ultimately, it is up to those who step onto the field to carry out the ideas of the coaches.Here are five players who...