Formerly a full-time starter and the Giants' No. 1 prospect, Crick made 25 relief outings and 11 starts for Double-A Richmond this year. He limited opponents to a .208 batting average but walked 66 batters in 63 innings. Stratton went a combined 5-10 with a 3.95 ERA at Richmond and Triple-A Sacramento.
The Giants have high hopes for Blackburn, who finished 10-4 with a 2.85 ERA in 23 games (20 starts) at Sacramento.