ATLANTA — Georgia Tech has a big role to fill this week with bruising runner Zach Laskey sidelined by a shoulder injury. Former quarterback Synjyn Days, a senior who switched positions before the start of summer camp, is likely to start in Laskey's spot, but he faces a tough task. The Yellow Jackets (5-2, 2-2 Atlantic Coast Conference) take a two-game losing streak to Pittsburgh on Saturday and need to get a big push inside the Panthers' four-man front.