The biggest question with Miami Dolphins first-round pick Kadyn Proctor at the outset involved where he would line up as a rookie, and we got an answer Wednesday morning. Or, at the very least, we got a starting point. GM Jon-Eric Sullivan indicated during a radio appearance on The Joe Rose Show that Proctor would take his first practice reps with the Dolphins at left guard. "Just because we always like to cross-train, whether you're talking about a nickel/safety or a guard/tackle or a guard/center, we like to cross-train guys," Sullivan said. "So they they line up in different spots. But I think probably day one, I think he's probably lined up at left guard. But it's moving pieces all the time, and really we just want to play with a couple different things to get the best five out there.…