By Tzvi Machlin As the Arizona Cardinals and QB Kyler Murray engage in some head-scratching social media movies, there may be a little bit of fire amid the smoke. According to ESPN NFL insider Chris Mortensen, sources within the Cardinals organization reportedly describe Murray as “self-centered, immature and a finger pointer.” He is believed to be frustrated with the franchise and their playoff embarrassment at the hands of the rival Rams. Murray also appears to believe that he has been framed as the scapegoat for their 34-11 blowout loss. But that isn’t to say that things are spiraling towar…