He will produce. The Red Sox have not had a top prospect like this. If you look at the Top preseason prospects that have reached the majors this year, most if not all are contributors:
1 - Jurickson Profar, SS (TEX) - Struggling a little, but hitting .243. Turned 20 in January
4 - Wil Myers, OF (TB) - Enough said.
7 - Jose Fernandez, RHP (MIA) - One of top 5 pitchers in National League
8 - Zack Wheeler, RHP (NYM) - Doing outstanding for the Mets
9 - Gerrit Cole, RHP (PIT) - In Pirates rotation.
13 - Christian Yelich, OF (MIA) - Hitting around .300 and batting leadoff for Marlins.
20 - Xander Bogaerts, SS (BOS)
25 - Shelby Miller, RHP (STL) - Look at his stats. Outstanding.
The only thing the Red Sox will regret is waiting for so long.