Three of the players Miami claimed came at their two weakest positions—wide receiver and secondary—and they brought in a linebacker to add depth to that position.
Here's a quick look at the players the Miami Dolphins added to their roster.
Anthony Armstrong, Wide Receiver (Formerly with Washington)
The Dolphins had their eye on Anthony Armstrong as early as Friday, when Rich Campbell of the Washington Times reported that the Dolphins and Redskins were working on a trade that would send Armstrong to the Dolphins in exchange for Steve Slaton (who Miami released on Saturday).
The Redskins releases Armstrong instead, so it's no surprised that the Dolphins made a waiver wire claim on a player that was a part of their practice squad in 2009.
Armstrong is coming off of a disappointing 2011, a season where he only started two games and had a total of seven catches for 103 yards and two touchdowns. However, in 2010 Armstrong showed potential, starting 11 games and grabbing 44 receptions for 871 yards and three touchdowns.
Working with Mike Shanahan while in Washington, Armstrong already has experience playing in the West Coast offense. While he won't start right away with Davone Bess and Brian Hartline ahead of him on the depth chart, he's already Miami's third-best wide receiver, and could get some starts at some point this season.
His main specialty will be with deep passes, which you will see in the accompanying video.
Troy Nolan, Safety (Formerly with Houston)
There's no question that Miami has a huge hole in the secondary. This is why, out of Miami's four waiver-wire pickups, two of them are in the secondary.
Troy Nolan is a four-year veteran who adds talent to a position that sorely needed it. During his four years in Houston, Nolan recorded 83 tackles and three interceptions, along with 1.5 sacks.
Nolan provides something that the Dolphins have been looking for at the safety position: playmaking ability. Nolan has made big plays when needed, and will be an asset to Miami's defense going forward.
R.J. Stanford, Cornerback (Formerly with Carolina)
You might remember R.J. Stanford from this preseason in Carolina; specifically, the final drive of Miami's preseason game against the Panthers, when he picked off Pat Devlin in the end zone as Devlin was attempting to drive the Dolphins to victory.
Stanford is only entering his second year in the league. Last year with the Panthers, he picked off one pass, had one pass deflection and recorded 11 tackles in limited action. He was a teammate of Sean Smith's at Utah, where he started his career at running back before transitioning to cornerback during his freshman year.
Miami will likely use Stanford just as sparingly as he continues to develop. However, as the year goes on, he could be a threat to replace Nolan Carroll as Miami's nickleback.
Sammy Brown, Linebacker (Formerly with St. Louis)
The least talked about Dolphins waiver wire pickup is former Rams linebacker and University of Houston product Sammy Brown.
He doesn't have a Wikipedia page, and a search for him on Google will net you stories about the Dolphins picking up all four of these players.
Brown is an undrafted free agent who St. Louis signed after the draft. Prior to being claimed by Miami, Brown was thought to be a lock for the Rams' practice squad.
Instead, in Miami he will add depth to the linebacking corps and will see the field primarily on special teams.