After Leslie gives Scott some encouragement during his first game back, Lawrence Frank, who was the Head Coach of the Nets, is visible in the huddle. Frank was edited out of the movie after the Nets fired him in November 2010.
In a scene in which McKnight says he's been trying to reach Morgan all day and is told she's been shopping, he and Leslie watch a report from "Mike & Mike in the Morning" on ESPN. The Mike & Mike Show airs live from 6:00 AM to 10:00 AM. Therefore, McKnight could not have been trying "all day" to reach her nor could she have been shopping long.
The scene where Leslie meets Scott while pumping gas after the game. You are not allowed to pump your own gas in NJ and OR, so she couldn't have been doing so in East Rutherford.