Since I have been a fan, there have been several players with huge expectations in the Red Sox minor league system. Some of these players, such as Mo Vaughn, Nomar Garciaparra, Trot Nixon, Jon Lester, and others meet those expectations. Others are not as fortunate.
Greg Blosser was the Red Sox first draft pick in the 1989 draft (16th overall), even picked before Mo Vaughn. That draft produced a lot of busts and Blosser is certainly worthy of being included with the likes of Tyler Houston, Roger Salkeld, Jeff Jackson, Donald Harris, Paul Coleman, Earl Cunningham, and others. Blosser's big weapon was power. He was expected to be the Red Sox left-fielder of the future, eventually taking over for Mike Greenwell.
In 1990, Blosser hit 18 home runs for Single A Lynchburg. He had a down season in 1991, but hit 22 for New Britain in 1992 and 23 for Pawtucket in 1993. He was brought up to the Majors for the first time in 1993. He had 30 at-bats for Boston in 1993 and only had one extra-base hit, a double and one RBI.
In 1994, he hit 17 home runs again for Pawtucket and made it back to Boston for 15 more at-bats. This time, he could not manage a single extra base hit. Blosser would never make it back to the Majors. His MLB line: .077/.200/.103/.303. Pretty bad. Blosser bounced around for several teams in the minors, continuing to hit lots of home runs, but never making it back.
That is a bust.