Here are the NFL playoff scenarios for Week 15:
AFC
CLINCHED: Houston (AFC South).
NEW ENGLAND PATRIOTS
New England clinches AFC East division with:
1) NE win OR
2) NE tie + NYJ loss or tie OR
3) NYJ loss
New England clinches a playoff spot with:
1) NE tie OR
2) CIN loss or tie + OAK loss or tie + TEN loss or tie
BALTIMORE RAVENS
Baltimore clinches a playoff spot with:
1) BAL win or tie OR
2) NYJ loss + OAK loss or tie OR
3) NYJ loss + TEN loss or tie OR
4) OAK loss or tie + TEN loss or tie
PITTSBURGH STEELERS
Pittsburgh clinches a playoff spot with:
1) PIT win or tie OR
2) OAK loss or tie OR
3) TEN loss or tie OR
4) DEN loss OR
5) NYJ loss
NFC
CLINCHED: Green Bay (NFC North and first-round bye); San Francisco (NFC West); New Orleans (playoff spot).
GREEN BAY PACKERS
Green Bay clinches home-field advantage throughout NFC playoffs with:
1) GB win or tie OR
2) SF loss or tie
NEW ORLEANS SAINTS
New Orleans clinches NFC South division with:
1) NO win + ATL loss or tie OR
2) NO tie + ATL loss
http://www.profootballweekly.com/2011/12/13/playoff-scenarios-for-week-15