But if Baltimore does find itself in position to win its third ever championship, it will do so without the likes of Ray Lewis, Ed Reed, Matt Birk and other key contributors.Lewis, the recent face of the franchise and Super Bowl MVP when the Ravens won their first title to cap the 2000 campaign, hung up his cleats after the season and was joined in retirement by Birk, a former Pro Bowl center who had anchored the club's offensive line since '08.Further cementing a new era, Lewis' partner in crime, Reed, signed as a free agent with Houston. He wasn't the only one to move on, with Dannell Ellerbe, Paul Kruger, Cary Williams and Bernard Pollard all switching teams over the offseason. Wide receiver Anquan Boldin was also traded to San Francisco.The most obvious choice to replace Lewis as the leader of John Harbaugh's squad is Flacco, and not just because he signed a massive sixyear, $120.6 million deal after taking home his own Super Bowl MVP trophy.What makes Flacco the new face of th