I heard the Rams had Gurley rated as the best overall player in the draft. I don't watch a lot of college football so I'm not gonna pretend like I disagree with that just because the media does, but if I saw him as a franchise RB like on the level of SJax I would have taken him too.
I just don't like trading Zac Stacy...we don't have good experience with players that have injury history (Bradford, Jake Long, Saffold, seemed to get injured every season), and I would have wanted Stacy in case Gurley or Mason get injured during the season.
edit: Also at that point in the draft the Rams 2 biggest needs, OL and WR, both had the top 2 gone. They might have been able to trade down but obviously only if someone else was willing to trade up...I thought the Chargers would be willing to trade up if they traded up for Gordon, but idk, maybe the Chargers would have rather had Gordon even if Gurley dropped to them