The 12th team in this 32-part series for Yahoo! SportsThe Miami Dolphins were one of the NFL's most aggressive teams this offseason. And we'll soon find out if it all pays off. It's safe to say that this franchise is overdue for a terrific season. It's almost hard to believe that the club has made just one playoff appearance (2008) since 2002. Before that, the Dolphins reached the postseason the previous five years. Last season, first-time head coach Joe Philbin led his team to a split in their final 12 games. But that was following a 1-3 start and when it was all said and done, the Dolphins have now posted four straight losing campaigns after finishing 11-5 and winning the AFC East in 2008.But now it is onto 2013 and here we will take a look at five players who could be critical to the team's success this upcoming season. While in some cases the obvious will be stated, in other instances the focus will be on a newcomer to the team or a performer looking to rebound from a disappointing year...http://sports.yahoo.com/news/2013-miami-dolphins-five-players-keep-eye-164700202.html