This article is part of our Minor League Barometer series.
While the MLB Draft is on every prospect guru's mind, this week's article will focus on those phenoms already playing games in their respective organizations. Jose Suarez made his MLB debut for the Los Angeles Angels. And while he was optioned to Triple-A following his start, Suarez got the win and definitely will be back for the future when needed. Ryan Mountcastle bashed three home runs for Baltimore's Triple-A affiliate Sunday and it seems only to be a matter of when, not if, he will get the call this summer. Jesus Luzardo of the Oakland A's looks on track to return to the mound at Triple-A sometime this month, while Jorge Mateo should soon be called up to the big club given his rousing return to prominence. And Zac Gallen looks to be one injury away from Miami, as he has little left to prove at Triple-A.
Who else is on the rise, and whose stock is taking a nosedive? Let's find out in this week's Minor League Barometer.
Cody Bolton, P, PIT – With Mitch Keller getting blown up in his first big-league start and seeing his star fade a bit over the last couple of seasons, an argument can be made that Bolton is now the most promising young arm in the Pirates system. He won't turn 21 until later this month, but he has found little resistance thus far at any level of the minors. A sixth round pick in 2017, Bolton has combined strikeout