The Los Angeles Chargers took some heat for the selection of Jake Slaughter in the second round of the NFL draft.  But there’s one rule that has defined the Chargers’ offseason:  Mike McDaniel gets what he wants .  The offensive savant and former head coach arrived in Los Angeles to much hype as the guy who might be able to help Justin Herbert reach new heights.  That has been reflected in every offensive move the Chargers made in free agency, right on down to grabbing a fullback on the open market.  So it shouldn't come as a great shock, then, to hear that Slaughter was a McDaniel pick, too.  Mike McDaniel was behind Chargers’ controversial draft pick Mike McDaniel | Kirby Lee-Imagn Images First, Slaughter the prospect.  There’s no question the Florida standout was the top center in the draft class in the minds of many. Our analysis has hit on that plenty of times .  The problem with Slaughter was a technicality: He had never played a snap of guard at Florida.…