As the Dolphins emerged as frontrunners in the Rosen trade negotiations on Friday, Miami media denizens scrambled for information on the biggest name of the NFL draft’s second day. “I’ve talked to multiple people about Josh Rosen today,” tweeted Miami Herald veteran Armando Salguero. “The play is not what troubles. The person does.” It’s the type of nebulous assessment that has followed Rosen throughout his football career, inflamed by a handful of too-candid sound bytes in the eyes of evaluators and what was judged a tepid endorsement in spring 2018 from his UCLA coach, Jim Mora Jr. “He needs to be challenged intellectually so he doesn’t get bored. He’s a millennial. He wants to know why,” Mora said. “Josh has a lot of interests in life. If you can hold his concentration level and focus only on football for a few years, he will set the world on fire.”