Davis Webb is in quarterback limbo. Interim coach Steve Spagnuolo said the decision on how to use the rookie over the final stretch of the season has been put on hold after the Giants fired coach Ben McAdoo and general manager Jerry Reese on Monday. The only thing known for sure is Eli Manning will start against the Cowboys on Sunday. “[Offensive coordinator] Mike [Sullivan] and I and the offensive coaches will talk about that as we go,” Spagnuolo said after practice Wednesday when asked about the plan for Webb. “The No. 1 focus right now is to figure out a way to beat the Dallas Cowboys. I can tell you that. And, each week we’ll talk about those other things.” Webb said he isn’t concerned with the uncertainly around him. “I don’t get to pick and choose what happens,” Webb said. “All I get to do is control what I can control. I am the quarterback of the scout team right now.”