Carson is in the proverbial best shape of his life, Penny is expected to be recovered in time for the season opener and pass-catching specialist C.J. Prosise offers an intriguing skill set as a wild card. If the Seahawks can keep any two of that trio healthy for the bulk of the season, they can reasonably expect their most consistent ground attack since Marshawn Lynch was bulldozing through arm tackles in the prime of his legendary Seattle career.