 Kosar saw his first action in the fifth week of the 1985 season against the New England Patriots, when he substituted before halftime for Gary Danielson, a 34-year-old veteran who the Browns had acquired in the offseason from the Lions.Kosar fumbled his first-ever NFL snap, but rebounded and led the team to a 24–20 win.A mix of success and failure followed, but Kosar progressed a bit more each Sunday and led the team to an 8–8 record.