Hahn wasn't a "minor league starter" last winter any more than Trevor May is a "minor league starter" right now -- he had a 112 ERA+ and 8.6 K/9 in 73 MLB innings already. And while not a top prospect, Alvarez was a reliever with a career 13.3 K/9 in the minors, who had already appeared in MLB (and had a 10.1 K/9 in 8 IP). Neither had yet to really struggle at any professional level. I know it seems affordable and I wish the Twins could have topped that offer, but for all our minor league depth, we didn't have two available pieces with that combination of MLB experience and success. Still don't, really, unless we want to deal May or Gibson. And Norris' .684 OPS is a 93 wRC+ in Petco -- not a star but 13th out of 26 MLB catchers with 200+ PA. He's on pace for a 3.2 WAR season. Arcia and Meyer are not official busts yet, but they're both trending in that direction. Arcia has spent the last 2.5 years looking a lot like a left-handed Dayan Viciedo impersonator. Unless San Diego was confident in a specific coaching plan that could turn them around, I think they ask for more or different pieces for Norris.