Donald Brown (Colts)—Everybody is picking Brown as a sleeper this year, and they're right to do so. He led the NCAA in rushing last season and was drafted into the perfect place.
The Colts parted ways with RB Dominic Rhodes and Addai has had a history of injuries, which opens up more rushing and receiving opportunities for Brown.
Knowshon Moreno (Broncos)—After signing every free agent RB, the Denver Broncos decided to use their first pick to take yet another RB, but Moreno is the best of the bunch. He's only a rookie, but Moreno brings a lot to the table behind a top five OL in the NFL.
Ray Rice (Ravens)—With Lorenzo Neal leaving to OAK, Le'Ron McClain will spend more time in his original FB position. Willis McGahee has injury problems, and he has to split time with another back, and that back is Ray Rice.
Rice saw some time last season and delivered pretty well, he will look to improve with more carries in '09.
Michael Bush (Raiders)—Like I said during the Ray Rice description, Lorenzo Neal is playing FB for the Raiders. Oakland's passing game is far from great so that leaves them to run the ball more.
Bush is a great back with incredible strength and speed, and will see more reps this season with experience under his belt.