SANTA CLARA – The smart money isn’t on the 49ers using free agency to restock their receiver pond. Still, Brock Purdy needs to throw to someone, and the offense needs an infusion of speed to keep defenses honest from swarming Christian McCaffrey. This isn’t all about Jauan Jennings and whether the 49ers re-sign him before or after others come courting him March 9, when contract talks can open for free agents. And this isn’t all about Brandon Aiyuk’s eventual exit, be it in the form of a release, a trade, or perhaps a retirement, which he seemingly did last season by leaving the 49ers midseason. This is about allocating resources, with greater demands elsewhere, while more likely bargain...
