Dolphins signed QB J.P. Losman, formerly of the Seahawks. Matt Moore's starting job just got a lot more secure, as Losman replaces Sage Rosenfels as the primary backup in Miami. Out of the league the first two months of the season, Losman has attempted just one NFL pass since losing the Bills starting job in 2008. He holds a career 10-23 record as a starter with a 59.2 completion percentage and 75.6 passer rating.