The Minnesota Vikings pulled off an excellent mid season trade for TJ Hockenson. He was traded between Weeks 8 and 9 of 2022 from the Detroit Lions. He’s been a great player for the team. It was a trade that worked out well for both teams. I think that is a rarity in trades and especially in a midseason trade.
Most midseason trades come from desperations. Prior to the first season at US Bank Teddy Bridgewater’s knee gave out. The Vikings were desperate and traded mid-preseason for Sam Bradford.