It's too early to tell who will do much. Beane got 3 guys in the BA top 100, so it isn't like he got stiffs. Fowler is a power hitting CFer with speed who has the ceiling of a 30-30 player. Mateo was converted to CF, but had the bat skills and 80 speed to be a leadoff hitter with league leading SB totals. Kaprielian is the real jewel, IMO. Kap fell victim to the Yankee medical staff. He missed almost all of 2016 with a forearm strain, then pitched in the AFL and looked amazing. With ST starting in 2017, he was diagnosed with a torn UCL and had TJS. The guy has top end stuff with the polish of an ace, he just hasn't been healthy. If all 3 were healthy, Beane wouldn't have gotten all of them, maybe only one.