This article is part of our The Saber's Edge series.
Last week I looked at hitting prospects who have yet to establish themselves as MLB regulars and have been sent to and from minors. This week it is the pitchers' turn to be in the spotlight. Scouting a toolsy pitcher is fairly easy, but they never seem to put it all together. Generally, these pitchers get the "frustrating" label placed on them. Some are never are able to put it together. But others do and can become staff aces.
When looking at pitching prospects, a person must remember that almost 99% of the prospects are coming up to the majors as starters. Rarely does a relief pitcher get a prospect ranking. Many failed starters do end up as great relievers (see Andrew Miller). While the