The Miami Dolphins swiped their biggest rival’s tight end, signed a coveted receiver and courted a top-flight corner Friday. But for all their news from a busy Day 4 of free agency, one storyline loomed above all others. JAKE JAKE JAKE That’s no random fan’s opinion. It’s Richie Incognito’s take. Hours after the Dolphins further bolstered their revamped offense — signing tight end Dustin Keller and receiver Brandon Gibson — Jake Long returned from a three-day visit with the Rams. He did so without a new contract. That kept the door open for Long, the team’s left tackle the past five years, to re-sign with the Dolphins. And his friends who don’t want Long to leave put the screws to him on Twitter on Friday night. Incognito, the Pro Bowl left guard, started a digital campaign to keep him in town “It’s time for the big guy to come home to the @MiamiDolphins,” he wrote. Said center Mike Pouncey: “I want Jake Long back in MIAMI!!! #enoughsaid.”