BALTIMORE RAVENS (146)KEY LOSSES: WE Anquan Boldin, LB Ray Lewis, S Ed Reed, LB Dannell Ellerbe, LB Paul Kruger, C Matt Birk, S Bernard Pollard, NT Ma Kemoeatu, CB Cary Williams.STRENGTHS: QB, RB, DL.WEAKNESSES: WR, TE.EXPECTATIONS: Defending Super Bowl champions went through vast offseason makeover, beginning with retirement of Lewis and including exit of Reed, both fixtures for more than a decade. Although team bears only small resemblance to one that earned Lombardi Trophy in February, key offensive contributors Joe Flacco and Ray Rice return, and retooled defense might actually be better than aging unit that struggled at times last year.STRENGTHS: DT, DE, OL, TE, RB.WEAKNESSES: WR, Backup QB.EXPECTATIONS: For first time in long time, Bengals have high expectations. They never reached playoffs three years in row, but have team capable of doing it.Before the halfway point of the season, an assortment of stories were associated with the Patriots. Offensive lineman Logan Mankins re