No clear winner or loser: 5 of 17 times (29.4%)
2018: New England Patriots trade Brandin Cooks to L.A. Rams for pick (Isaiah Wynn)
Three times on this list a player only spent one full year with the team before getting traded the following year (Trent Richardson, Sam Bradford, and the second Brandin Cooks trade) so they were hard to grade.
Can anyone really say that Richardson was more or less of a bust than Manziel? Bradford was 7-7 with the Eagles and he was 7-8 with the Vikings, but Barnett hasn’t set the world on fire either.
The Patriots basically traded the option to draft Ryan Ramczyk for a 1,000 season from a receiver, a Super Bowl appearance and Isaiah Wynn. That feels like a win until you realize that they might have been able to manufacture that production at WR and that with better offensive line play (Wynn missed his rookie season) they might have won that Super Bowl.
Going all the way back, the Pats traded Richard Seymour to the Raiders where he went on to have three more good years. However, they got Nate Solder who was an above-average tackle for them for seven years, so that seems like a fair trade.