For Week 2, the Saints traveled to take on the Packers at Green Bay's Lambeau Field, where they had lost 52-3 last season. The Saints trailed in the first quarter, on a 22-yard touchdown pass to opposing WR Greg Jennings and two Dave Rayner field goals (a 24-yarder and a 36-yarder).  The Saints began their scoring in the second quarter, as RB Deuce McAllister got a 3-yard touchdown run and quarterback Drew Brees threw a 26-yard touchdown strike to WR Devery Henderson.  In the third quarter, the punishing continued, as kicker John Carney kicked a 45 and a 47-yard field goal to further New Orleans' lead.  In the fourth quarter, Green Bay tried to come back with quarterback Brett Favre throwing a 4-yard pass to WR Robert Ferguson.  The Saints managed to put the game away with a 25-yard touchdown pass to WR Marques Colston and a 23-yard run by McAllister.  The Packers would get one more score, in the form of a 6-yard touchdown pass to RB Noah Herron, but the damage had already been done.

Answer this question based on the article: Which team had the lead after the first quarter?
Green Bay