http://www.sportsnet.ca/baseball/mlb/realistic-expectations-blue-jays-rookies-prospects-pompey-norris-travis-sanchez-castro-osuna/
"Having talked to a number of scouts who have seen Sanchez throughout his minor league career, one name continually comes up – A.J. Burnett.
Before Blue Jays fans balk at that comparison, it’s worth nothing that Burnett has had a long, successful career that most pitching prospects would kill for. The peaks and valleys made for one heck of a ride, but half the longevity and achievement of Burnett would make Sanchez a success story.
The comparison exists because of the pure stuff, and because of an inability to harness it (Burnett struggled with command early in his career). In the bullpen last year, Sanchez appeared to have a better idea of what his stuff was doing, but the track record of guys who walk 4.8 batters per nine in the minors isn’t strong once they get to the major leagues. That explains why PECOTA projects Sanchez to post a 5.49 ERA in 136.2 innings this season.
Between the long track record of wildness and multiple comparisons to a pitchers who battled similar control issues, it will be difficult for Sanchez to turn things around by this season. Even his improved command as a reliever last season came at the expense of his change-up, which he all but abandoned late in 2014.
In the bullpen, however, he was able to get away with his inconsistencies and be more effective. A repeat of his 1.09 ERA is about as likely as him turning into Greg Maddux, but there is reason to believe he can be a successful reliever this year should the Blue Jays decide to change course. There is less confidence to be had about him learning how to throw strikes as a starter overnight."