Buy low: Dak Prescott, the line will get healthier, and the defense looks mediocre, and is already pretty banged up. Rams defense is really good.
Sell high: Aaron Rodgers, the Vikings defense was the bigger story in my eyes. Rodgers had a couple games like this last year too.
Buy low: Antonio Gibson, still fully expect him to be Washington's #1 RB. I don't expect them to be running out the clock with leads often.
Sell high: Malcom Brown, probably just had his best game of the year. Akers will likely get more involved, and would have been a sell low, but I doubt Akers owners are selling yet.
Buy low: Brandin Cooks, the Texans are going to be in a lot of shootouts, and somebody besides Fuller stands to benefit. Cooks was banged up, and still ran ahead of Cobb/Stills.
Sell high: Robby Anderson, I would consider DJ Moore a sell low as well. I think this is a team that is going to be pretty random at WR, and won't support multiple guys every week.
Buy low: Rob Gronkowski, he played almost the entire game, and was just missed on a potential TD. I expect his playing time will increase as the year goes on.
Sell high: Dallas Goedert, its tough to sell TE's, but if someone thinks a changing of the guard is happening, its not. There is enough room for both, but I could see someone overpaying.