They gave up the 29th pick & the 50th pick, the two 4th rounders don’t really accumulate value unless you’re a team that really knows how to draft.
In terms of value, it’s not as much of a haul as people think it is, the Rams have proven that picks can be supplemented if you replace them with quality players & Tyreek is no doubt a top 3 WR in the league.
I think two things need to be mentioned here when talking about the Rams and the Dolphins.
1. In any discussion about the Rams it has to be mentioned at the top that they have one of the truly elite coaches in the NFL. McVay won Coach of the Year in 2017 before the Rams traded high picks for Brandin Cooks and Marcus Peters, and he had taken the Rams to the Super Bowl before they traded picks for Jalen Ramsey, Matthew Stafford, Odell Beckham Jr., Von Miller etc. There was proof of concept that let the Rams know the risk of trading picks was worth it. If Mike McDaniel is an elite head coach then this Tyreek HIll trade might work out. If he's an average coach or worse then the Dolphins will never win enough games to make the trade worth it. They're taking a huge gamble that they have the infrastructure in place to pay this trade off despite this coaching staff never having coached a game together.
2. The Dolphins actually have a good track record of drafting after the first round. It's one of the only areas where the franchise has been better than average in the last decade-plus, so the idea that they would just blow the picks they traded doesn't strike me as true. Here's a list of guys they have drafted after round 1 under Grier: Xavien Howard (second), Raekwon Davis (second), Mike Gesicki (second), Jerome Baker (third), Kenyon Drake (third), Brandon Jones (third), Durham Smythe (fourth), Andrew Van Ginkel (fifth), Davon Godchaux (fifth), Jakeem Grant (sixth). Even going back further when Grier was running the scouting department you have Jarvis Landry (second), Sean Smith (second), Olivier Vernon (third), Kendall Langford (third), Lamar Miller (fourth), Brian Hartline (fourth), Bobby McCain (fifth), Reshad Jones (fifth), Nolan Carroll (fifth), Charles Clay (sixth). There's multiple Pro Bowl players on that list, guys who earned real second contracts, returned value in trades, etc. If you wanna argue that five of those guys aren't worth one Tyreek Hill then cool, you might be right. But I think you're probably wrong.
Ultimately, if the Dolphins want to play the Rams game -- sacrificing depth for stars -- that means having truly elite players across the roster *and* even more importantly having an elite coach. The Rams had Aaron Donald (best defensive tackle ever?), Von Miller (the best pass rusher of his generation), Jalen Ramsey (best CB in the NFL), Andrew Whitworth (two time First Team All Pro LT), Matthew Stafford (likely Hall of Fame QB), and a WR in Cooper Kupp who they drafted in the third round and who just put up one of the best WR seasons in NFL history. Maybe the Dolphins get there with Tyreek, Xavien, Armstead, Waddle, Phillips, Holland etc. but that's a lot of maybes with no idea if the coach or QB are anywhere near that level.
