Before he showed up at Indiana’s camp, Caleb Pugh might have settled with a less competitive program. After all, he’s unranked and relatively invisible to recruiting analysts although he’s got football talent. But that’s the kind of prospect that intrigues Curt Cignetti. And before long, the Hoosiers landed this underrated Michigan OL. On Sunday, Indiana added another piece to the future when Grand Rapids Christian OL Caleb Pugh announced his co…