The NFC west throne shifted from the Rams to the 49ers this last year but one can make an argument for all 4 teams to take the crown. Here are free agents and trade acquisitions that would help all these teams right away.
Arizona Cardinals: Da’Shawn Hand
The Cardinals have addressed the defensive line by adding Leki Fotu and Rashard Lawrence but many view them as rotational linemen. Hand showed his upside in the 2018 season before being banged up to start 2019. The Lions beefed up the defensive line with the additions of Julian Okwara and Danny Shelton so Hand would presumably play a lesser role. Hand would give the Cardinals a starter alongside Corey Peters and Jordan Phillips who can stop the run and bring some pass rushing ability. The Lions could use a linebacker so the Cardinals could use one plus a pick in a trade.
Compensation: Haason Reddick and 2021 6th round pick
San Francisco 49ers: Logan Ryan
It is hard to find any gaping holes on the 49ers roster but they are in need of an established slot corner. Ryan is one of the top slot corners at the age of 29 and could come at a reasonable contract at this point. San Francisco struggled against teams that like to give volume to their slot receivers like the Arizona Cardinals and Ryan could help fix that problem. A 1 year deal for Ryan is likely and they will have cap space if they want to bring him back after next year.
Contract: 1 year, 5 million (5 million guaranteed)
Seattle Seahawks: Larry Warford
Warford is a starting caliber guard but with the Saints in a cap crunch, they seem to be turning the spot over to newly drafted 1st round guard Cesar Ruiz. Warford will draw trade interest and the Seahawks should be willing to offer a considerable amount to keep Wilson safe. The Seahawks lost D.J. Fluker to the Ravens and have not brought back Justin Britt or Germain Ifedi meaning that only 2/5 of their offensive line from last year is there. The addition of Warford should help minimize the losses on the right side of the line.
Compensation: 2021 4th round pick
Los Angeles Rams: Denzel Perryman
Perryman’s time with the Los Angeles Chargers seems to be coming to an end after the team drafted Kenneth Murray in the first round. Perryman has injury history but provides an immediate upgrade over anything that the Rams currently have at ILB. In a division with 3 strong running games, it will be of utmost importance to replace Corey Littleton with someone who can go coast to coast to stop the run. The Chargers will likely be looking for minimal compensation and Perryman would not even have to change stadiums.
Compensation: 2021 7th round pick