Two teams not heading to the playoffs will finish the season off against each other when the Eagles host the Bills at The Linc on Sunday.  Buffalo is 7-and-8 and has lost two straight.  Their last time out, the Bills were 38-21 losers to the Giants.  Quarterback Trent Edwards completed just nine-of-26 attempts in the setback for Buffalo, which gained only 244 total yards.  The Eagles have won their last two, including a 10-6 win over the NFC-leading Cowboys in Week 15.  Last week, Philadelphia improved to 7-and-8 as they dealt New Orleans a critical 38-23 defeat.  Donovan McNabb, who could be making his last start for the Eagles, was 24-of-35 passing for 263 yards and three scores against the Saints.