There was no shortage of talented quarterbacks who hit the transfer portal this offseason. However, one particular talent stood out to Greg McElroy. On Thursday, the ESPN analyst revealed which transfer QB he believes will have the greatest impact this fall. “It’s Cam Ward at Miami,” McElroy said. “You can’t play quarterback by yourself either. You need a great supporting cast, and I look at what he’s going to be taking the field with. Two of the top receivers in the ACC last year, in terms of production, are both back. “He also brings in an elite running back in Damien Martinez. You look, too…