What do Seahawks' signings of Marcel Reece, Jeron Johnson mean?

Seattle officially placed free safety Earl Thomas on injured reserve, ending the three-time All-Pro's season after he suffered a fractured tibia in the second quarter Sunday's win over the Carolina Panthers. To add some depth to its secondary, the team re-signed safety Jeron Johnson, who played in 46 games with the Seahawks from 2011 to 2014. Fullback Marcel Reece also officially joined the squad after reports of his imminent signing broke on Monday. A three-time Pro Bowler with the Raiders, the 31-year-old Reece was released by Oakland on Sept. 26 after returning from a four game suspension for the use of performing-enhancing drugs. So what do we make of the late-season moves? Here are three quick takeaways: