Apr. 5—If this Cardinals offensive machine is going to operate, it needs Nolan to be Nolan (meaning Arenado, of course, but if we’re doing this ... Gorman, too). It was only seven games of 162, but entering the home opener Thursday, Arenado had looked uncomfortable and uncharacteristic. He was hitting .207 with an OPS of just .467. And a couple of his swings even looked like desperate heaves. …