No. The fake quote is not it. I have prior posts about Rosen. I live in LA, and have heard bad things about him. And even his coach threw him under the bus. Him being a prick is not recent news.
Kelly was an arrogant hick, trying to act "big time", eventually he got over it. Rosen may mature too, but they are not similar people. Kelly never had his toughness questioned. Kelly was popular with his coaches and teammates. Rosen is considered "individualistic", and to have a mentality better suited to an individual sport (like tennis, the sport he originally trained for, before an injury made him change course).