The Rams made it to the Super Bowl in 2019, and it seemed like they would have a chance to be a perennial contender under head coach Sean McVay.However, despite posting winning seasons in 2019 and 2020, the team was only able to make one playoff appearance and won just one game. It was becoming clear that there were some limitations to the team's upside, and if they wanted to take advantage of the strong core they had, they would need to make some moves.General manager Les Snead helped do just that. He and McVay worked to retool the Rams' roster after their disappointing follow-ups to their 13-3 Super Bowl lo s to the Patriots in 2019. They added some key, high-end talents but also worked diligently to improve the team's depth and develop some unheralded players already on the roster.The result? The Rams are back in the Super Bowl. This time, they will face the Bengals and they will be favored to beat Cincinnati and take home a title for the first time since 2000.How did the Rams build their Super Bowl roster? Here's a look at their recent draft picks, free agent signings and the aggre sive moves they made in 2021 in an effort to make a juggernaut.MORE: Matthew Stafford trade: Rams land upgrade at QBThe Rams weren't Louis Williams Jersey among the teams that desperately needed a quarterback during the 2021 NFL offseason. They had Jared Goff and Jerome Robinson Jersey while the former No. 1 overall pick had his share of i sues, the team had invested heavily in him with a lucrative deal and rode him to a Super Bowl 54 appearance.However, Sean McVay and Les Snead knew if the team could get an upgrade, it might put them over the top. That's why they pulled the trigger on a deal to acquire Matthew Stafford from the Lions.Stafford was long one of the NFL's underrated quarterbacks, and he and the Lions agreed to part ways during the 2021 offseason. The Rams got involved in the sweepstakes for him and ultimately won it. Below is what they gave up to acquire Stafford.Matthew Stafford trade detailsRams receive: Matthew StaffordLions receive: Jared Goff, 2022 first-round pick, 2023 first-round pick, 2021 third-round pickIt helped Los Angeles' cause that current Lions general manager, Brad Holmes, came from the Rams' front office. He evidently liked Goff enough to make the deal and use him as a bridge while Detroit rebuilt the rest of its team.Meanwhile, the Rams got a high-end starting quarterback in Stafford. He posted a strong season for the Rams and logged 4,886 pa sing yards and 41 touchdowns while completing 67.2 percent of his pa ses. He threw a league-high 17 interceptions, but his downfield, playmaking ability proved superior to Goff.Stafford undoubtedly gave the Rams a higher ceiling in 2021, and McVay enjoyed coaching him during the 2021 season."Bro, this dudes a bad MF-er," . "Whatever people say about him, as good as it can be, hes even better than advertised. It makes sense to him. The guys ability to see the game, his ability to draw on his experiences, the feel that he has, its pretty special and unique. And man, his feel for people, his authentic way of connecting with his teammates, his coaches, this guy, its great being around him."Credit McVay and Snead for knowing exactly what their team could be with an above-average starter instead of a lower-tier one.MORE: The 2021 Rams and the NFL Draft: Finding value without first-round picksOne of the most incredible parts of the Rams' Super Bowl run is that they haven't used a first-round draft pick since 2016. They have dealt them away Los Angeles Clippers Jersey for key players, including Stafford and Jalen Ramsey, so the last first-round pick they made was actually Goff.Despite their lack of early-round resources, the Rams still have developed homegrown players at a high rate, as Jason Fitzgerald of OverTheCap.com detailed on Twitter.Despite the way people look at the they actually ranked 6th in the NFL in homegrown players. They had the most drafted players in the NFL on their roster this year. That's been overshadowed by the big trades Jason_OTC (@Jason_OTC) How have the Rams done that? They have found values on Days 2 and 3 of the draft and turned them into key role players on both offense and defense.Since 2017, the Rams have drafted five offensive starters outside of the first round. They have done particularly well finding offensive linemen, as 2018 fourth-round pick Brian Allen Landry Shamet Jersey and 2019 fifth-round pick David Edwards have both become solid interior offensive line starters. Joseph Noteboom, a 2018 third-round pick, has also played a key role for the team as a swing tackle and spot starter.Of course, fans of the team will be a bit more familiar with players like Cam Akers and Van Jefferson, two second-round picks in 2020 that have been key parts of the offense during this Super Bowl run. And, of course, who can forget Cooper Kupp, a 2017 third-round pick who nearly racked up 2,000 receiving yards during the 2021 NFL season.The Rams' succe s on defense has been notable as well, especially up the middle. They have uncovered players like defensive tackle Greg Gaines, a 2019 fourth-round pick who had 4.5 sacks this year, and undrafted linebacker Troy Reeder, who was one of the primary starting middle linebackers along with rookie third-round pick Ernest Jones.Even more impre sive is the group of safeties that the Rams have collected over the years. They selected Taylor Rapp and Nick Scott in the second and seventh rounds of the 2019 NFL Draft before taking Jordan Fuller in the sixth round of the 2020 draft. All three have been well-rounded players with good coverage skills, and Fuller, in particular, has become a steal.These players may not be household names, but they haven't needed to be. The Rams spent a lot of their draft capital on proven, NFL-ready players and stars to ensure that they just had to find role players.While not all of their big acquisitions like the trade up for Goff and trade for Brandin Cooks have panned out, they have hit on enough of their stash of mid-to-late-round draft picks to field a team that is both well-rounded and deep.MORE: The Chris Paul Jersey 2021 Rams and NFL free agency: Picking their spotsAs aggre sive as Snead and the Rams have been on the trade market, they tend to be rather tame in free agency. They have made a handful of bigger signings since McVay was hired in 2017, but they tend to choose their targets carefully.The Rams' most aggre sive free agency under Snead and McVay came in 2017. They made several key signings, chief of which was adding Andrew Whitworth to the fold. They needed help at left tackle and Whitworth, then 35, was viewed as a good bridge option.Five years later, Whitworth is still starting. 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